Answers
Answer:
B) metaphase ll
Explanation:
Answer:
metaphase 2
Explanation:
it correct
Related Questions
What causes interference color to develop? Be able to define
interference
color and why different minerals have different interference
colors? Is this
viewed in XPL or PPL?
Answers
Interference color is a phenomenon observed when light interacts with thin films or layers of materials, such as minerals. It occurs due to the interference and superposition of light waves that are reflected or transmitted by these thin films.
Interference color refers to the colors that result from this constructive or destructive interference of light waves. These colors can vary depending on the thickness and refractive index of the material, as well as the wavelength of the incident light. Interference colors are usually observed using polarized light microscopy (PLM) techniques, specifically in crossed polars (XPL) mode.
Different minerals exhibit distinct interference colors because their optical properties, such as refractive index and birefringence, vary. Refractive index determines how much light is bent as it passes through a mineral, while birefringence accounts for the difference in refractive indices between different crystallographic directions within a mineral. These variations interact with the thickness of the mineral's thin sections, leading to variations in interference colors.
In XPL, minerals appear bright or dark depending on their optic sign and orientation relative to the crossed polarizers. The interference colors seen in XPL provide information about the mineral's birefringence and thickness. Higher-order interference colors (e.g., yellows, oranges, reds) generally indicate higher birefringence and thicker mineral sections, while lower-order colors (e.g., blues, greens) suggest lower birefringence and thinner sections.
It's important to note that interference colors alone may not be sufficient for mineral identification, as they can overlap among different minerals. Additional characteristics, such as crystal shape, cleavage, and other optical properties, need to be considered in conjunction with interference colors to accurately identify minerals using PLM techniques.
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Your analysis of this species' habitat indicated that there are 10 populations of Capercaillie in this region. How can a different species with similar habitat requirements have a different number of populations in the same region? If so, which model parameters might be different? In other words, if there is a species that occurs in exactly the same locations as Capercaillie, could it occur in a smaller or larger same number of populations in this area? If so, what characteristic of the species might be different? And, what model setting would reflect this difference?
Answers
A different species with similar habitat requirements can have a different number of populations in the same region due to various factors, such as the species' dispersal ability, reproductive strategy, and ecological niche.
If there is a species that occurs in the same locations as Capercaillie but has a different number of populations in the area, one possible difference could be in the species' dispersal ability. Some species may have better dispersal capabilities, allowing them to colonize a larger number of locations and establish more populations within the same region. This can be influenced by factors such as the species' mobility, ability to traverse different habitats, or adaptations for long-distance dispersal.
Additionally, the reproductive strategy of the species can affect the number of populations. Species with high reproductive rates and shorter generation times may be able to establish and sustain larger populations compared to species with lower reproductive rates.
The ecological niche of the species can also play a role. If there are specific habitat requirements or resource availability that differ between species, it can affect the distribution and number of populations. Some species may have narrower niche requirements, limiting their population distribution to specific locations with suitable conditions.
To reflect these differences in the model, parameters related to dispersal, colonization ability, and population growth rates would need to be adjusted accordingly. For example, a species with better dispersal abilities may have higher dispersal rates or colonization probabilities in the model. Similarly, a species with a higher reproductive capacity may have higher birth rates or lower mortality rates. By incorporating these species-specific parameters, the model can capture the differences in population distribution and dynamics between different species with similar habitat requirements in the same region.
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match the tissue type to its function covers body surfaces forms many glands fills spaces between organs forms cartilage and bones forms blood cells forms tendons and ligaments forms the wall of the heart and moves the skeleton has dendrites and an axon that helps it send messages throughout the body. a. connective tissue b. nerve c. muscle d. epithelium
Answers
Epithelium: It covers body surfaces such as the skin. It also covers organs such as the lungs and stomach. Epithelium is also responsible for the production of glandular tissue. The cells that make up epithelial tissue are packed closely together. Connective tissue:
t provides structure and support for organs and other tissues. It fills in spaces between organs and helps to attach muscle to bone. Connective tissue is also responsible for protecting organs from damage. Muscle: It helps to move the skeleton and create heat through muscle contractions.
Muscle tissue can be divided into three categories: smooth, cardiac, and skeletal. Nerve: It contains dendrites and an axon, which helps it send messages throughout the body. The nervous system controls and regulates body functions. It is responsible for coordinating the body's response to external and internal stimuli.
Cartilage and bones: Cartilage provides a cushion between bones. It also provides support for the nose, ears, and other structures. Bone tissue provides support for the body and protects internal organs. Bone tissue also serves as a storage site for minerals like calcium, which is important for maintaining strong bones.
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what could be deadly to you if you were near the top of the troposphere?
a.ultraviolet radiation
b.extremely hot temperatures
c.lack of oxygen
d.too much air pressure
Answers
Which of the following statements about homologous chromosomes is true? a. They are genetically identical. b. In a cell with four pairs of homologous chromosomes - two pairs from each parent c. Homologous chromosomes can be found in both haploid and diploid mother cells d. They contain all of the same genes but not necessarily the same alleles
e. Homologous chromosomes pair up and undergo recombination during prophase of mitosis
Answers
The homologous chromosome are genetically identical to each other option A is correct.
Generally, in somatic cells chromosomes are in pairs. If the pair consists of similar chromosomes by shape and organization, they are called 'homologous chromosomes' and if they are not similar they are called 'heterologous chromosomes'.
A structure found inside the nucleus of a cell. A chromosome is made up of proteins and DNA organized into genes. Each cell normally contains 23 pairs of chromosomes.
In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.
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A chemical spill causes the offspring of ladybugs to have blue dots instead of black dots. what is the mechanism of evolution and the reasoning??
Answers
gene pannier is active in different populations of elytra cells that prefigure exactly where the black pigmentation will appear in adults. Pannier then activates other genes that collectively ensure the production of black pigment by these cells and thus the formation of the black spots (in “red” ladybugs) or the black background (in “black” ladybugs).
in what way are dna and rna molecules different? dna serves as the template in dna replication; rna serves as the template in transcription.
Answers
DNA and RNA are two types of molecules that are responsible for the transfer of genetic information in living organisms. They are both made up of nucleotides, but they differ in their structure and function. In this article, we will explore the ways in which DNA and RNA are different.
DNA stands for deoxyribonucleic acid, while RNA stands for ribonucleic acid. DNA is found in the nucleus of cells, while RNA is found both in the nucleus and in the cytoplasm of cells.
The main difference between DNA and RNA is that DNA is double-stranded, while RNA is single-stranded. This means that DNA is composed of two strands of nucleotides that are held together by hydrogen bonds, while RNA is composed of a single strand of nucleotides.
Another difference between DNA and RNA is that DNA contains the sugar deoxyribose, while RNA contains the sugar ribose. This difference in sugar structure affects the stability of the two molecules, with DNA being more stable than RNA.
DNA serves as the template for DNA replication, which is the process by which cells make copies of their DNA.
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As a senior high student what help can you extend to your community so that the people will be informed of the elements that are exposed to hazards?
Answers
As a senior high student, the help that can be extended to one's community so that the people will be informed of the elements that are exposed to hazards is: Creating Awareness about the elements through the distribution of flyers.
What are hazards?
Hazards are chemical substances that have the potential to cause harm. A community is usually large and to reach such a large audience, flyers or public address systems can be used.
A student can design simple flyers to be shared to all families in the community informing them of the elements that are exposed to hazards.
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All of the following are benefits of establishing a territory except:
Answers
umm . this answer is not complete .
Which of the following us is the Lowest level of organization in starfish ?
Answers
Answer:
sealevel
Explanation:
Answer:
lol
Explanation:
Which kingdom does a multicellular living organism most likely belong to?
a. Animalia
b. Archaebacteria
c. Bacteria
d. Eukarya
please helpppp
Answers
Answer:
Eukarya - (D)
Explanation:
Organisms belonging to the plant kingdom are eukaryotic and multicellular organisms. They have a distinct cell wall made of cellulose. Cells are organised into true plant tissues. Plants contain plastids and photosynthetic pigments such as chlorophyll.
discuss some examples of different fields of biotechnology and what they study (e.g., bioremediation, which is used to assist in the clean-up of chemical spills, etc.).
Answers
Biotechnology is the usage of living systems and organisms to develop or create goods, improve plants and animals, or develop microorganisms for precise uses. Biotechnology is the technology of the future as it holds the promise of remedying a range of chronic diseases that are still incurable.
Different fields of biotechnology with their uses are described below:
1. Agriculture biotechnology : is the use of living organisms to make plants and animals more productive, create vaccines, and enhance nutrient absorption.
2. Medical biotechnology : is a subset of biotechnology that deals with medical applications.
3. Environmental biotechnology : deals with the application of biotechnology to the environment.
4. Industrial biotechnology : uses organisms and enzymes to develop industrial products.
5. Forensic biotechnology : is used to identify and analyze DNA samples. It is used in criminal investigations, paternity testing, and identification of remains.
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Describe the weather factors that are important in determining where plants and animals can exist in an area.
Answers
Answer:
rain is very important for life in certain areas, this is why you see little life in deserts and even they need rain occasionally. more rain will lead to more life, first, it will be the plants that move in, then once they grow, vegetation eaters will move in, then after that meat-eaters will move in to eat those creatures and the ecosystem will flourish.
The atomic number usually allows us to determine the amount of which two subatomic particles
Answers
Answer:
protons and electrons
Answer:
protons and neutrons
Explanation:
Membrane proteins are among the most important proteins biologically because they allow the cells to communicate with their
environments. These membrane proteins are responsible for ALL BUT which process?
A)
triggering ion channels
B)
identifying foreign cells
regulating intake of oxygen
D)
activating growth hormone reactions
Answers
Explanation:
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Testing for Starch 1. Add IODINE (add 5-7 drops) to the sample. Negative result Positive result Orange/brown colour Blue/black colour Testing for Reducing sugars (eg glucose, maltose) 1. Add approx 2cm' of the sample to a test tube. 2. Add approx. 2cm' of blue BENEDICT's solution. 3. Shake gently to mix 4. Place in the water bath for 5 minutes. 5. Continually check for colour change Negative result Positive result Blue colour Green - orange - yellow - red Testing for Amino acids (proteins) 1. Add approx 2cm' of the sample to a test tube. 2. Add approx. 2cm' of blue BIURET solution. 3. Shake gently to mix. 4. Wait for colour change. Negative result Positive result Blue colour Purple/violet colour Testing for Lipids (Fats and Oils) 1. Add approx 2cm' of the sample to a test tube. 2. Add approx. 2cm' of ETHANOL solution. 3. Shake gently to mix. 4. Add approx 2cm of water. Negative result Positive result Clear/no colour milky/white emulsion (mixture)Food tests Testing for Starch 1. Add IODINE (add 5-7 drops) to the sample. Negative result Positive result Orange/brown colour Blue/black colour Testing for Reducing sugars (eg glucose, maltose) 1. Add approx 2cm' of the sample to a test tube. 2. Add approx. 2cm' of blue BENEDICT's solution. 3. Shake gently to mix 4. Place in the water bath for 5 minutes. 5. Continually check for colour change Negative result Positive result Blue colour Green - orange - yellow - red Testing for Amino acids (proteins) 1. Add approx 2cm' of the sample to a test tube. 2. Add approx. 2cm' of blue BIURET solution. 3. Shake gently to mix. 4. Wait for colour change. Negative result Positive result Blue colour Purple/violet colour Testing for Lipids (Fats and Oils) 1. Add approx 2cm' of the sample to a test tube. 2. Add approx. 2cm' of ETHANOL solution. 3. Shake gently to mix. 4. Add approx 2cm of water. Negative result Positive result Clear/no colour milky/white emulsion (mixture)
Answers
The tests involve adding specific reagents to the sample and observing color changes to determine the presence or absence of the tested substances.
The procedure outlines four different tests for different types of food components.
1. Starch Test: Iodine is added to the sample, and if starch is present, it will react with iodine to form a blue-black color. A negative result is indicated by an orange/brown color.
2. Reducing Sugars Test: Benedict's solution is added to the sample, followed by heating in a water bath. If reducing sugars such as glucose or maltose are present, they will react with Benedict's solution to form a color change ranging from blue to green, orange, yellow, or red, indicating a positive result. A blue color indicates a negative result.
3. Amino Acids (Proteins) Test: Biuret solution is added to the sample, and if proteins or amino acids are present, a color change from blue to purple or violet will occur, indicating a positive result. A blue color indicates a negative result.
4. Lipids (Fats and Oils) Test: Ethanol solution is added to the sample, and if lipids are present, they will form a milky or white emulsion when mixed with water. A clear or no color change indicates a negative result, while a milky or white appearance indicates a positive result.
These tests provide qualitative information about the presence or absence of specific food components, aiding in the identification and characterization of various biological molecules in the sample.
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The Florida Panther use to be found throughout the southern states. However, due to humans developing the land, Panthers can only be located in a small area of Florida. This is primarily an example of ____.
1.Habitat Fragmentation
2.Invasive Species
3.Climate Change
Answers
Answer:
1. Habitat fragmentation
Explanation:
Due to hunting and habitat loss there endangered.
cretinism results fromgroup of answer choicesa deficiency of thyroid hormones at birth.hyperthyroidism in an adult.hypothyroidism in an adult.lack of prolactin.none of the above.
Answers
Cretinism results from a deficiency of thyroid hormones at birth. It is a condition characterized by impaired physical and mental development due to inadequate thyroid hormone production during fetal development and infancy. This deficiency can lead to stunted growth, intellectual disability, and other developmental abnormalities.
The correct answer would be deficiency of thyroid hormones at birth.
Cretinism is a condition that results from a deficiency of thyroid hormones at birth. It is a form of congenital hypothyroidism, characterized by impaired physical and mental development due to insufficient production or function of thyroid hormones during fetal development or infancy.
Thyroid hormones, specifically thyroxine (T4) and triiodothyronine (T3), play a crucial role in regulating various aspects of growth and development in the body. In cases of cretinism, the thyroid gland fails to produce an adequate amount of these hormones, leading to a deficiency.
The deficiency of thyroid hormones during early development can have severe and long-lasting effects on the individual. It can result in stunted growth, both physically and mentally, and may lead to intellectual disabilities. Other common features of cretinism include delayed or impaired skeletal maturation, enlarged tongue, protruding abdomen, and umbilical hernia.
Early detection and treatment of cretinism are essential to prevent irreversible damage. Screening programs are implemented in many countries to identify infants with congenital hypothyroidism shortly after birth. Prompt initiation of thyroid hormone replacement therapy can help normalize hormone levels and prevent or minimize the developmental impairments associated with cretinism.
It is important to note that cretinism specifically refers to the condition resulting from a deficiency of thyroid hormones at birth. Hyperthyroidism in an adult refers to an overactive thyroid gland, while hypothyroidism in an adult indicates an underactive thyroid gland. The lack of prolactin is unrelated to cretinism, as prolactin is a hormone primarily involved in lactation and not thyroid function.
In conclusion, cretinism is caused by a deficiency of thyroid hormones at birth. It leads to impaired physical and mental development, emphasizing the crucial role of thyroid hormones in fetal and infant growth. Early detection and treatment are vital in managing this condition and mitigating the long-term effects on the affected individual's development.
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why is the world round? it would be much better flat...? lol
Answers
Answer:
round is better then flat.
Explanation:
Bc, if it was flat it would eather be day or night all day.
If it was round the world dose not does not go in a circle or it would be flat.
Thats why the core of the wrld spins us not in a circle.
phagocytosis is an example of multiple choice exocytosis. facilitated diffusion. passive transport. endocytosis. simple diffusion.
Answers
Phagocytosis is an example of endocytosis which occurs in cells during the intake of large particles or food. Endocytosis is a type of active transport, in which the cell membrane invaginates around the extracellular material, thus enclosing it within the cell.
The cell membrane then forms a vesicle, which is subsequently transported within the cell. Phagocytosis is a process in which specialized cells known as phagocytes engulf and destroy pathogens or other particles in an organism. Phagocytes use their long projections to surround the particle, and then take it inside the cell. The particle is then enclosed within a vesicle, and is fused with lysosomes to be degraded and destroyed.
The other options mentioned in the question are incorrect. Exocytosis involves the movement of materials from inside the cell to outside. Facilitated diffusion is the transport of molecules across a cell membrane with the help of membrane proteins.
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1. What do plant cells have that animal cells do not have?
Answers
Answer:
Cell Walls.
Explanation:
Plant Cells maintain their rigidity with cell walls. They also provide extra "protection".
Animal cells usually only have a cell membrane, not a cell wall + cell membrane.
.(Calculated Height ÷ Measured Height) x 100 – 100 = Percent Error
Table 2. Skeletal Proportions
Measured Height
Wingspan
Percent of Error
Skull Circumference
Calculated Height (x3)
Percent Error
Questions:
Explain why calculating height from bone length is useful to a forensic pathologist.
Looking at the results, how accurate were your calculations? Explain.
Answers
Calculated Height ÷ Measured Height) x 100 – 100 = Percent Error is used to calculate the percentage of error between two different types of measurement such as measured height and calculated height.
This is useful for a forensic pathologist because it helps to determine how accurate the measurements of the skeletal remains are and can be used to identify a person. Additionally, bone length is a more reliable indicator of height than other measurements such as weight or BMI, which can be affected by factors such as muscle mass and body type.
Therefore, calculating height from bone length is a useful tool for forensic pathologists when identifying remains. Looking at the results, the percent error can be calculated for both the wingspan and skull circumference. If the percent error is low, then the measurements are more accurate, while a high percent error indicates that there is a larger discrepancy between the measured and calculated height.
Based on the results of Table 2, it is unclear how accurate the calculations were as the percent of error is not provided. However, the percent of error can be calculated by using the formula (Calculated Height ÷ Measured Height) x 100 – 100 = Percent Error. Once the percent error is calculated, it can be used to determine the accuracy of the measurements.
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During photosynthesis, the reactants are changed into what?
Answers
Answer: oxygen+ glucose
Explanation:
The reactants are converted to oxygen (6Co2) + glucose ( C6H1206)
The presence of which cell organelle would be most helpful in classifying a cell as either prokaryote or eukaryote
Answers
Answer:
im prett sure its memvrane bound nucleus
Explanation:
The presence of nucleus would be most helpful in classifying a cell as either prokaryote or eukaryote.
Prokaryote are those organisms that possess cells that lack membrane bound organelles.
They are usually single cell organisms.
Typical examples include:
bacteria, archaea, and cyanobacteria (blue-green algae)Eukaryote are those organisms that possess membrane bound organelles. They contain a central nucleus which is surrounded (bound) by a membrane called nuclear envelope.
Examples of eukaryotes include:
animals, plants,fungi, and protists.Therefore the presence of nucleus would be most helpful in classifying a cell as either prokaryote or eukaryote.
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Which organisms are likely to be found in level 4 of this diagram? Select the
two correct answers.
600
3
1550
Trophic Level
N
17000
340000
O A. Lion
.
B. Frog
O C. Shark
D. Mouse
E. Grass
Answers
Answer: A. Lion and C. Shark
Explanation:
A•P•E•X
The two correct answers of organisms likely to be found in Level 4 could be:
C. Shark - Sharks are apex predators and are often tertiary consumers in marine food webs.
A. Lion - Lions are also apex predators and are tertiary consumers in many terrestrial food webs.
What is tertiary consumer level?The tertiary consumer level is the level in a food chain or food web that consists of organisms that consume secondary consumers, which are themselves consumers of primary consumers (herbivores). Tertiary consumers are often apex predators, at the top of the food chain or food web, and they typically have few or no natural predators.
Examples of tertiary consumers include large carnivorous animals such as lions, sharks, and eagles, as well as some species of snakes, lizards, and other reptiles. In aquatic ecosystems, dolphins, killer whales, and some species of fish like tuna are also considered tertiary consumers.
The presence of tertiary consumers is crucial for ecosystem stability, as they help to control the populations of lower trophic levels and maintain ecological balance. Their decline or extinction can have cascading effects throughout the food web, leading to imbalances and disruptions in the ecosystem.
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in species of fish where combat for females is prevalent, what type of sexual reproduction would you predict?
Answers
In species of fish where combat for females is prevalent, sexual selection is driven by male-male competition for access to females. These types of sexual selection are thought to be responsible for a variety of sexual dimorphisms in fish, such as differences in body size, shape, coloration, and ornamentation.
Male fish that win aggressive encounters with other males are often larger, stronger, and more aggressive than their rivals. These traits are thought to be advantageous in the context of sexual selection because they increase the likelihood of successfully competing for access to females.
In some species, males will also exhibit elaborate courtship behaviors or produce acoustic or visual signals to attract females or deter rivals.
These types of adaptations are thought to increase the likelihood of successful reproduction by attracting females to the male's territory or by deterring rivals from approaching.
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Which of the following is an example of an animal found in the phylum Nematoda?
Answers
Answer:
Explanation:
Parasitic nematodes found in class Rhabditea include Ascaris, Enterobius (e.g. human pinworm), Necator species as well as Wuchereria species. These species infect and cause a variety of diseases in human beings ranging from minor to very serious conditions.
Which path best illustrates the direction energy travels through a forest ecosystem?
Responses
Sun -> Plant ->Mouse <- Snake <- Owl
Sun -> Plant ->Mouse -> Snake-> Owl
Sun<- Plant<- Mouse <-Snake<- Owl
None of the above
Answers
The correct path illustrating the direction of energy flow through a forest ecosystem is Sun -> Plant -> Mouse -> Snake -> Owl.
The primary source of energy in most ecosystems is the sun. Sunlight is captured by plants through the process of photosynthesis.Plants are producers and convert solar energy into chemical energy in the form of glucose through photosynthesis. They are at the beginning of the food chain and serve as a source of energy for other organisms.Herbivores, such as mice, feed on plants. They obtain energy by consuming plant material, specifically leaves, stems, or fruits.Carnivores, such as snakes, feed on herbivores like mice. They obtain energy by consuming other animals.Apex predators, such as owls, are at the top of the food chain and feed on lower-level consumers, in this case, snakes. They obtain energy by consuming other animals.Therefore, the correct path illustrating the direction of energy flow through a forest ecosystem is from the Sun, which provides energy through sunlight, to plants (producers) through photosynthesis. The energy is then transferred from plants to herbivores (mice) through consumption. Next, it flows from herbivores to carnivores (snakes) through predation. Finally, it moves from carnivores to apex predators (owls) through predation. This path demonstrates the sequential transfer of energy from one organism to another in a forest ecosystem.For more such questions on forest ecosystem, click on:
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What I'd the difference between transpiration and guttation
Answers
5) You are studying phytoplankton blooms in the Gulf of Mexico. Answer the following questions:
a) You determine that bacterial heterotrophic production increases when primary production increases. Briefly describe why heterotrophic bacterial production increases when primary production increases.
b) You use PIT traps to quantify the amount of sinking organic matter over the course of a phytoplankton bloom. However, the amount of organic carbon in the sinking organic matter is much lower than the amount of organic carbon produced from photosynthesis. Briefly describe why the amount of organic carbon in the sinking organic matter is much lower than the amount of organic carbon produced from photosynthesis.
Answers
a) Heterotrophic bacterial production increases when primary production increases due to the availability of organic matter produced by phytoplankton through photosynthesis.
b) The lower amount of organic carbon in the sinking organic matter compared to the amount of organic carbon produced from photosynthesis can be attributed to several factors
How to explain the informationa) Heterotrophic bacterial production increases when primary production increases due to the availability of organic matter produced by phytoplankton through photosynthesis. Primary production refers to the synthesis of organic compounds by autotrophic organisms, such as phytoplankton, using sunlight and nutrients. .
b) The lower amount of organic carbon in the sinking organic matter compared to the amount of organic carbon produced from photosynthesis can be attributed to several factors. Firstly, during a phytoplankton bloom, the primary production by photosynthetic organisms, such as diatoms or dinoflagellates, can be exceptionally high. These organisms have efficient mechanisms to convert inorganic carbon dioxide into organic carbon compounds through photosynthesis.
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