Answer:
snake crocodile
Explanation:
they are both reptiles and have a scaly skin and eye shape is similar
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Which chemical receptors are the main influence on the regions of the brain responsible for maintaining respiratory homeostasis?
hydrogen
carbon dioxide
water
oxygen
The chemical receptors are the main influence on the regions of the brain responsible for maintaining respiratory homeostasis is carbon dioxide.
How does carbon dioxide increases?The main chemoreceptors involved in respiratory feedback are: Central chemoreceptors: These are located on the ventrolateral surface of medulla oblongata and detect changes in the pH of spinal fluid. They can be desensitized over time from chronic hypoxia (oxygen deficiency) and increased carbon dioxide.
Thus, option "B" is correct.
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How does an allergic reaction take place in the body? What is it affecting?
Answer:
Your immune system overreacts by producing antibodies called Immunoglobulin E (IgE). These antibodies travel to cells that release chemicals, causing an allergic reaction. This reaction usually causes symptoms in the nose, lungs, throat, sinuses, ears, lining of the stomach or on the skin
Explanation:
When he crossed those tall plants with each other, 75% of the plants came out _________ and 25% came out ________. This shows that alleles can be ________ even if they are not physically seen.
1. tall
2. short
3. present (?)
This makes sense if the parents are heterozygous for the trait
Example:
Tt x Tt
Kids = TT, Tt, Tt, and tt
How are characteristics that suit a species for survival transmitted from one generation to the next?.
Answer:The genetic code inherited from our parents
Explanation:
There are several characteristics that are selected due to their importance for the survival of an individual. The characteristics that are needed by a species for survival are transmitted from one generation to the next through genes.
What are genes?A gene is the most crucial physical and functional unit of genetic inheritance. DNA is actually the building block of genes.
Some genes serve as mandatory part for the creation of proteins. Many genes, however, do not code for proteins.
Genes in humans can vary in size from a few hundred DNA bases to over 2 million bases.
Thus, it can be concluded that the characteristics that are needed by a species for survival are transmitted from one generation to the next through genes.
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The process by which modern organisms have descended from ancient organisms is called.
Answer:
Evolution
Explanation:
Evolution – change over time. It is the process by which modern organisms have descended from ancient organisms. Current scientific facts, observations and hypotheses all combine to create current evolutionary theory – which is a well-supported, testable explanation of the biological diversity on Earth.
Which of the following is the most accurate count of biodiversity in an area?
True census
Sample census
Species-area effect
Population density
True census is the most accurate count of biodiversity in an area, hence option A is correct.
What is biodiversity?Low biodiversity suggests that an area only supports a few species, whereas high biodiversity indicates that a region supports a large variety of species.
Although the causes of variations in biodiversity are numerous and multifaceted, they involve both natural and artificial factors.
A common way to measure biodiversity is the number of species present in a specific area, be it a single tree, an ecosystem, a landscape or region, or the entire globe.
However, there are various techniques to gauge biodiversity. The overall diversity of genes within a single species is referred to as genetic diversity.
The biodiversity index is a mathematical formula that scientists use to quantify the variety of species present in a region.
Therefore, option A is correct.
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Female chimpanzees that live together often help take care of one another’s young.
This best demonstrates which type of relationship between the female chimpanzees living together?
cooperation
competition
predation
commensalism
Answer:
Cooperation
Explanation:
Cooperation in biology is when groups or organisms work together to help each other out basically.
The kidney nephrons filter around 125cm3 of blood in one minute.
Calculate the total volume of blood filtered by the kidney nephrons in 24 hours.
Answer:
180,000 volume of blood
Explanation:
So the nephrons filter 125 cm^3 of blood in 1 minute so when finding 24 hours you know 1 hour has 60 minutes so multiply 125 by 60 to get 7500 which is the blood filtered in 1 hour and since you need 24 hours multiply this 7500 by 24 to get your final answer of 180,000 volumes of blood filtered.
Organ system that breaks down food and absorbs nutrients.
Does metamorphosis occur in thyme plant's life cycle?
Answer:
In addition, although the term metamorphosis is generally not applied to plants
Answer:
i dont think so
Explanation:
who madeThe double-helix structure of DNA:
Answer: Francis Crick and James Watson (or Rosalind Franklin).
Explanation: After Crick and Watson took over the study that Franklin did, they managed to figure out the structure and the parts of the DNA. But specifically, Crick and Watson were the people who called the structure a “double helix”.
Answer:
James D. Watson
Explanation: In 1953, Francis Crick and James Watson first described the molecular structure of DNA, which they called a "double helix," in the journal Nature. For this breakthrough discovery, Watson, Crick, and their colleague Maurice Wilkins won a Nobel Prize in Physiology, or Medicine, in 1962.
What is the phenotype ratio in a dihybrid cross where everything in the boxes are absolutely the same?
only _______ cells have a cell wall instead of a cell membrane
When you exhale, air in your lungs moves from the _
A. bronchi to the bronchioles to the alveoli
O B. bronchi to the alveoli to the bronchioles
c. trachea to the bronchioles to the bronchi
O D. bronchioles to the bronchi to the trachea
Answer:
The answer is D) bronchioles to the bronchi to the trachea.
This food web represents a community along the coast of Alaska.
Which food chain is part of this food web?
The food web is the interlinked arrangement of the food chain in the different ecosystems. Bald eagle → sea gull → mussels → zooplankton → phytoplankton is the part of the food web. Thus, option B is correct.
What is a food web?A food web is a graphical representation of the producers and consumers of the various food chains of an ecosystem that are interlinked together. It shows the transfer of energy and food resources.
The consumer is always at the top and comprises big animals like the bald eagle and seagull that feed on mussels, which are also secondary consumers. The mussels derive their energy from the zooplankton that are primary consumers, which feed on the phytoplanktons, a producer.
Therefore, the Bald eagle → sea gull → mussels → zooplankton → phytoplankton is the part of the food web.
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Answer:
phytoplankton—> zooplankton—> fish —-> seagull—-> bald eagle
Explanation:
How many times larger is the number of Hydrogen atoms than Oxygen atoms in a cel lulose molecule?
Answer: Glucose, fructose, and galactose each has twice the number of hydrogen atoms as the number of oxygen atoms.
Explanation: I hope this help
HURRRY HELP ME!!! Modern whales lack hind limbs, and have tail flukes and ears specialized for hearing underwater. Which of the following is the correct order for the evolution of these whale characteristics?
A. Loss of hind limbs followed by tail flukes and underwater ears
B. Loss of hind limbs followed by underwater ears and tail flukes
C. Tail flukes followed by loss of hind limbs and underwater ears
D. Underwater ears followed by tail flukes and loss of hind limbs
Answer:
I think it b im not sure but i hope its right :}
Explanation:
During sustained skeletal muscle contraction, can you think of three situations that might cause true fatigue?.
Answer:
skeletal muscle contraction
Explanation:
The phase during mitosis in which chromosomes move into the center of the cell is
prophase
anaphase
interphase
metaphase
Answer:
Metaphase
Explanation:
Metaphase, which is the stage between Prophase and Anaphase, is when the chromosomes line up at the equator of the cell, where their centromeres are attached to the spindle.
Answer:
Metaphase
Explanation:
Metaphase, which is the stage between Prophase and Anaphase, is when the chromosomes line up at the equator of the cell, where their centromeres are attached to the spindle.
Which part of the plant allows gases such as carbon dioxide into a plant leaf for photosynthesis?.
Answer:
stomata
Explanation:
Carbon dioxide cannot pass through the protective waxy layer covering the leaf (cuticle), but it can enter the leaf through an opening (the stoma; plural = stomata; Greek for hole) flanked by two guards cells. Likewise, oxygen produced during photosynthesis can only pass out of the leaf through the opened stomata.
Answer:
stomata
Explanation:
stomata open and closes like a door bringing co2 in and releasing h2o and am all so learning the exact topic
animal and plant cells
can someone help me pls for science class
The peppered moth population in England changed in response to darkening forests due to air pollution during the Industrial Age. Dark-colored moths became much more common, a characteristic that helped camouflage them on dark trees which, prior to the industrialization of England, were light in color. Which is the most likely reason that dark coloration became more common in peppered moths populations?
Question 1 options:
Nature selected for the more fit dark-colored peppered months in the new environment.
The original peppered moths stopped reproducing.
The pollution in the air settled on the peppered moths' wings, causing discoloration.
Dark coloration is a dominant trait, making it more likely to be passed on to the next generation.
As a result of natural selection, the dark-coloured moths were favoured over the light-coloured moths therefore the light-coloured moths died out and didn't have the chance to reproduce while the dark-coloured moths thrived, allowing them to pass on their genes to the next generation of peppered moths.
The correct answer is the first option.
Which of the following examples best describes an organism's niche? Panda bears have a very limited diet, primarily feeding on bamboo in their environment. Snakes will eat various types of birds and mice and must adapt to many different locations. Due to increased population, the bobcat will move to a different habitat and eat new sources of food. A lack of resources causes rats to eat each other instead of producers.
An organism's niche is best described by option B that snake will eat various types of birds and mice and must adapt to many different locations.
Option B is the correct answer that describes the organism's niche.
In ecology, the term “niche” describes the role an organism plays in a community. A species' niche encompasses both the physical and environmental conditions it requires (like temperature or terrain) and therefore the interactions it's with other species (like predation or competition).
Following are an example of an organism's niche-
Biotic factors affecting a species' niche include food availability and predators. Abiotic factors affecting ecological niches include temperature, landscape characteristics, soil nutrients, light, and other non-living factors.
Thus, the correct option is B, the snake will eat various types of birds and mice and must adapt to many different locations.
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B. Most parasite do not kill their hosts. Explain why parasites are considered biotic limiting
factors.
After which event could you say that evolution has occurred? A white-eyed fly is born into a population of brown-eyed flies. A new predator comes into an environment. A population of mice consists of more dark mice than white over time after a volcanic eruption changes the ground from light to dark ground. An animal gets fat.
Answer:
An allele frequency changes in a population
Explanation:
Because alleles are alternative forms of a gene that arise from mutation.
What would happen to the Nitrogen moving through the nitrogen cycle if all of the denitrifying bacteria disappeared today? What would this mean for life on Earth?
Answer:
The nitrites would not be converted to nitrates, resulting in an accumulation of ammonia molecules.
Explanation:
Hope this helps :)
If all of the denitrifying bacteria disappeared today the process of denitrification will not be further carried away. Due to this, the decomposition of nitrates and nitrites into ammonia does not proceed. Hence, ammonia accumulates in the environment.
What is Denitrification?Denitrification may be defined as a process through which the decomposition of nitrates and nitrites into ammonia and free nitrogen takes place with the help of denitrifying bacteria namely Bacillus licheniformis, Pseudomonas aeruginosa, E. coli, etc.
As a result of this, the amount of ammonia and free nitrogen accumulates in the environment in huge quantities. This leads to numerous imbalances in nature that significantly affect humans, plants, and animals.
In the process of denitrification, the combined nitrogen of soil is eliminated in the form of gas. Thus, the soil is depleted of essential nutrients for plants and thereby reducing agricultural productivity.
Therefore, if all of the denitrifying bacteria disappeared today the process of denitrification will not be further carried away.
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What term describes the blood
pressure when the heart is
contracting?
Answer:
When the heart pushes blood around the body during systole, the pressure placed on the vessels increases. This is called systolic pressure. When the heart relaxes between beats and refills with blood, the blood pressure drops. This is called diastolic pressure.
The term meaning the death of bone tissue resulting from insufficient blood flow to an area of bone is.
Answer:
osteonecrosis
Explanation:
Osteonecrosis means death of bone tissue dueto an insuffficient blood supply, infection, malignancy, or trauma it may also be called AVN (avascular necrosis)
Plant cells have a special organelle that helps them to make their own food. What is that
organelle called?
O Photosynthesis
O Chloroplast
O Mitochondria
Cell Wall
Answer:
photosynthesis
Explanation:
it helps make food
Answer:
Chloroplast.
Explanation:
Photosythisis is the process in which the plant uses sunlight a energy to make it's own food called glucose. Oxygen also comes from this process. Mitochondria is a part in the cell that creates biochemical processes of respiration and energy production occur. A cell wall the outer layer of some cells that protects it. Chloroplast contains chlorophyll and in which photosynthesis takes place.
