Answer:
There is less energy in higher trophic levels.
Explanation:
With less energy at higher trophic levels, there are usually fewer organisms as well. Organisms tend to be larger in size at higher trophic levels!
The second rule of thermodynamics indicates that some energy is wasted as heat with each energy transfer or transformation, hence higher trophic levels in most ecosystems have fewer organisms than lower trophic levels.
How energy is transferred in the ecosystem?In an ecosystem, producers like plants use the sun's energy to build organic molecules through a process called photosynthesis. Primary consumers like herbivores then eat these organic compounds. Although the herbivores receive the energy from the organic molecules, some of it is wasted as heat during metabolism along with other biological processes.
The remaining energy is subsequently given to secondary consumers, such carnivores, with part of it once more being lost as heat. The same holds true for higher trophic levels. As we progress up the food chain, the amount of energy available at each trophic level declines, and fewer species can be supported at each higher level.
Therefore, the second rule of thermodynamics indicates that some energy is wasted as heat with each energy transfer or transformation, hence higher trophic levels in most ecosystems have fewer organisms than lower trophic levels.
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Natural selection works to produce change at which of the following levels?
Individuals
Communities
Populations
Characteristics
Answer:
Populations is the correct answer
1. according to the punnett square, what were the chances that emma would be heterozygous/carrier?
The Punnett Square charted out the chances that Emma would be heterozygous or a carrier as 25%. In order to analyze this, it is important to understand how the Punnett Square works.
The Punnett Square utilizes genetic information from two different parents or sources in order to predict the possible offspring outcomes. It organizes and arranges each allele in different combinations, with the most common allele at the top of each box in a square. In this specific Punnett Square, the topalleles for each parent involved were S and s with the dominant-allele S being used for this example.
As such, the square reveals that for each of the four possible gamete combinations among the parents, there is one potential offspring result Combo-A which is composed of both dominant-alleles (SS) and one potential offspring result Combo-B which is composed of both recessive-alleles (ss). Finally, there is one potential offspring result Combo-C which is composed of both heterozygous-alleles (Ss).
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Which of the following can affect the gene pool of a population? A. additional individuals being born. B. individuals moving out of the area. C. mutations.
Three main factors that can change the gene pool of a population are: additional individuals being born, individuals moving out of the area, and mutations.
Here, all the options are correct.
The gene pool of a population is the collective set of genetic information for all of the individuals who make of the population. This pool is continually changing as individuals are consistently interacting with the environment.
Due to the process of reproduction, additional individuals are constantly being born, adding new genetic information to the population as a whole. This new information can be a mixture of genetic traits passed down from the parents or it may be completely new, caused by the mutations during the reproductive process.
Here, all the options are correct.
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hich of the following statements about meiosis and mitosis are true? please select all that apply. meiosis involves two rounds of dna replication mitosis involves one round of dna replication mitosis involves one round of chromosome/chromati
Meiosis and Mitosis are two fundamental processes that enable the division of cells. They both possess similarities and differences. Below are some of the differences between Meiosis and Mitosis:MeiosisIn this process, DNA replication occurs once, and two rounds of cell division take place, which results in four genetically diverse daughter cells.
Each daughter cell possesses half the chromosome number of the original parent cell. It results in the formation of haploid cells.Meiosis is a necessary process for the reproduction of sexually reproducing organisms.MitosisMitosis has only one round of DNA replication and a single round of cell division takes place resulting in two genetically identical daughter cells
Each daughter cell possesses the same number of chromosomes as the original parent cell.It is essential for the growth and repair of tissues, asexual reproduction, and clonal growth.A statement that is true about mitosis and not about meiosis is that Mitosis involves one round of chromosome/chromatid division.
Therefore, the statements that are true about meiosis and mitosis are:Mitosis involves one round of DNA replicationMitosis involves one round of chromosome/chromatid division.
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nucleoside reverse transcript
which of the following choices would be the best explanation as to the cause of this drugs side effect
Answer:death
Explanation:
Death
what is the best time for the removal of weeds .
Answer:
The best time to remove weeds is when the soil is damp and moist. The day after it has rained is a great day for weeding. Damp soils are loose and make it easier to remove them with their roots. Otherwise, you may run the risk of leaving the roots because they are stuck in the soil.
Many species of bacteria live in your mouth and throat. These bacteria come from several different groups within domain Bacteria. You can avoid most bacterial infections by washing your hands frequently and not sharing food or eating utensils.
Choose the three statements that are true of every kind of bacteria.
A. respond to stimuli
B. can survive without water
C. can reproduce
D. can spontaneously generate
E. use energy
39) what happens to activity levels in muscle spindle afferents versus golgi tendon organ afferents when a muscle contracts? when a muscle is passively stretched?
Muscle spindle afferents and Golgi tendon organ afferents are two types of proprioceptors that play a crucial role in proprioception. Proprioception is the ability to detect and understand the position and movement of body parts through the nervous system.
The muscle spindle is a sensory receptor found in skeletal muscle. The Golgi tendon organ (GTO) is a sensory receptor that is found at the musculotendinous junction. When a muscle contracts, the muscle spindle activity level will increase because of the stretching of the muscle fibers. This increase in muscle spindle activity will activate alpha motor neurons in the spinal cord, which will cause the muscle to contract.
This is called the stretch reflex. In contrast, the Golgi tendon organ activity levels will decrease when a muscle contracts because the muscle fibers are contracting, and the tendon is relaxing. T When a muscle is passively stretched, the muscle spindle afferents will become more active because of the stretching of the muscle fibers.
This will cause the alpha motor neurons to be activated, resulting in muscle contraction. The Golgi tendon organ afferents will also become more active, and as a result, it will cause the muscle to relax. The muscle spindle afferents are responsible for detecting changes in muscle length, while the Golgi tendon organ afferents are responsible for detecting changes in muscle tension.
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how can a cell remember which gene it needs to express (turn on and off) from one generation to the next?
A cell can remember which gene it needs to express from one generation to the next via the epigenetic memory, which is the cell's memory of the inherited modifications on the DNA, which are acquired during development. Epigenetics mechanisms, such as DNA methylation and histone modification, can turn genes on or off.
They can also maintain the gene's active or inactive state in the cell's lineage over time. Histone modification is an important mechanism in epigenetic regulation.
Histones are proteins that help package DNA into chromosomes and are subject to various post-translational modifications, such as methylation, acetylation, phosphorylation, and ubiquitination.
These modifications can regulate gene expression by modifying chromatin accessibility, promoting or inhibiting DNA binding by transcription factors, and determining the binding site of non-coding RNA.
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Waves transfer energy. Mechanical waves, such as ocean waves and sound waves, move through some type
of matter, called a medium, while another kind of wave can travel through a vacuum. What type of wave
can move through a vacuum?
Answer: electromagnetic, or light, waves can move through a vacuum
Explanation:
Answer:
electromagnetic DUN DUN DUN
Explanation:
stay safe 2021
In E. coli, there is a mutation in a gene called dnaB that alters the helicase that normally acts at the origin. Which of the following would you expect as a result of this mutation?
A
No proof reading will occur.
B
No replication fork will be formed.
C
Replication will occur via RNA polymerase
D
Replication will require a DNA template from another source.
In E. coli, a mutation in a gene called dna B that alters the helicase that typically acts at the origin would result in B) No replication fork will be formed.
DNA helicase is an enzyme that separates DNA strands during DNA replication. It catalyzes the unwinding of the parental double helix, allowing each strand to act as a template for the synthesis of a new complementary strand by DNA polymerase.
DNA helicase separates the DNA strands at a replication fork by using ATP hydrolysis to travel along the DNA molecule in a 5' to 3' direction. ATP hydrolysis unwinds the double helix by breaking the hydrogen bonds between complementary bases in the two strands.
During DNA replication, the replication fork is the site where the parental DNA double strand separates, and the new daughter DNA strands are synthesized by DNA polymerase.
It is a Y-shaped structure that forms when the DNA double helix separates into two strands at the origin of replication, and each strand acts as a template for DNA synthesis. The replication fork moves along the DNA molecule as DNA synthesis continues, and replication is complete when the two forks meet at the termination site.
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Write a paragraph about the relationship of weathering and erosion. *
Your answer
Which of the following would enable your body to cope with low blood sugar level?
A urination
B thirst
C hunger
D coughing
Answer:
Answer:
The question is very confusing but, I do think that the answer would be C. Hunger. Because when your hunger you eat and the food can get your sugars up. But I think that answer could also be B. Thirst because if you have low blood sugar you could drink something that has sugar in it to get your blood sugar up.
Which substance that produces oh ions dissolved in water
Explanation:
Question:-Which substance that produces oh ions dissolved in water?
Answer:-Bases
Did you know?Which substance that produces H+ ions dissolved in water?
Acids.
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Weathering is the breakdown of rocks into smaller particles called . weathering is when rocks are physically broken into smaller pieces, but the minerals in the rock remain the same. When a rock is broken down in a way that changes the mineral composition, it is called weathering.
Answer:
This question is incomplete
Explanation:
This question is incomplete but each sentence made there has a general meaning. Each statement will analysed in the numbered explanation below
1) The first statement describes what weathering means. Weathering is a process involving the gradual break-down of rocks and it's component minerals into smaller pieces and unit which can be transported by means of erosion. There are three types of weathering chemical, physical and biological weathering.
2) The second statement describes physical weathering. This is a process in which rocks are broken down into smaller units with no effect on the mineral constituents of the rocks. Physical weathering can be caused by fast moving water and earth movement.
3) The third statement describes chemical weathering. This is a process in which the chemical composition of the rock is affected as the rock is broken down. This can be as a result of acid rain which reacts with the minerals in the rock to form other substance.
NOTE: Biological weathering is the type of weathering caused by biological activities. For example, the continuous movement of a large group of animals over a rock can make a rock break down over time.
Answer & Explanation:
1. Is sediment
2. Is Mechanical
3. Is chemical
______________________________________I do edge 2020 how I know.
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Chloroplasts are concentrated in the palisade mesophyll. Chloroplasts are the site of photosynthesis and contain chlorophyll which is important for making glucose in photosynthesis. How do plants use chlorophyll in photosynthesis?
A) Chlorophyll absorbs sunlight energy for photosynthesis.
B) Chlorophyll stores carbon dioxide for photosynthesis.
C) Chlorophyll stores glucose made in photosynthesis.
D) Chlorophyll stores oxygen made in photosynthesis.
HELP ASAP!
Answer:
A) Chlorophyll absorbs sunlight energy for photosynthesis. :)
Explanation:
To quote Nat Geo:
"Chlorophyll’s job in a plant is to absorb light—usually sunlight. The energy absorbed from light is transferred to two kinds of energy-storing molecules" :)
Answer:
i think its c
Explanation:
Green plants have the ability to make their own food. They do this through a process called photosynthesis, which uses a green pigment called chlorophyll. ... Through photosynthesis, the plant uses the stored energy to convert carbon dioxide (absorbed from the air) and water into glucose, a type of sugar.
pink four o'clock flowers have one copy of the allele for red petals and one copy of the allele for white petals. the best explanation for the pink petal color is . multiple choice question.
The pink petal color in the pink four o'clock flowers is due to incomplete dominance. Incomplete dominance occurs when two different alleles are present, and neither allele is dominant over the other.
Instead, a blending of the traits occurs, resulting in an intermediate phenotype, which, in this case, is the pink petal color. This occurs because the alleles for red petals and white petals are both expressed to some extent, but neither is fully dominant over the other.The inheritance pattern for the pink four o'clock flowers is an example of a genetic concept known as codominance. In codominance, two different alleles for a gene are both expressed equally in the heterozygous condition.
As a result, both the alleles for red and white petals are expressed equally, producing the intermediate pink coloration.Pink is neither a dominant nor recessive trait. It occurs when a flower contains both the alleles for red petals and white petals.
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usesuspension colloid solution
Answer:
Suspension= Mud, Blood
Colliod=Ink
Solution=Tea
I hope it help you,
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Compare the sea surface temperatures from Feb 2003 and Feb 2021.
Answer:
b
Explanation:b
To compare sea surface temperatures between Feb 2003 and Feb 2021, one would need to access meteorological databases. General trends suggest increasing temperatures due to climate change, but actual data depends on specific ocean regions and the influence of various factors.
Explanation:Comparing the sea surface temperatures from Feb 2003 and Feb 2021 would involve obtaining data from meteorological sources and examining them for differences and similarities.
While the exact temperatures will vary depending on the particular regions of the ocean under consideration, it is generally observed that there is a trend of increasing sea surface temperatures over the years due to climate change. However, for accurate data, one would need to reference reliable environmental or meteorological databases.
It is also important to note that the temperatures might fluctuate due to factors such as ocean currents, weather patterns, local geographical factors, and more.
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which of the following are found in both plant and animal cells? (select all that apply.) check all that apply mitochondriamitochondria chloroplastschloroplasts centriolescentrioles golgi complexesgolgi complexes endoplasmic reticulumendoplasmic reticulum
The structures that are found in both plant and animal cells are A. Mitochondria and E. Endoplasmic Reticulum
Mitochondria: Mitochondria are membrane-bound organelles responsible for energy production in cells. They are involved in cellular respiration, converting nutrients into usable energy in the form of ATP. Both plant and animal cells require energy for their metabolic processes, so mitochondria are present in both cell types.
Endoplasmic Reticulum (ER): The endoplasmic reticulum is a network of membranes involved in protein synthesis, lipid metabolism, and the transport of molecules within the cell. It exists in two forms: rough ER (with ribosomes attached) and smooth ER (without ribosomes). Both plant and animal cells have these two forms of ER, although their proportions and functions may vary.
In summary, mitochondria and endoplasmic reticulum are organelles found in both plant and animal cells, while chloroplasts, centrioles, and golgi complexes have specific distributions between the two cell types. Therefore, Option A and E is correct.
The question was incomplete. find the full content below:
which of the following are found in both plant and animal cells? (select all that apply.) check all that apply
A. mitochondria
B. chloroplasts
C. centrioles
D. golgi complexes
E. endoplasmic reticulum
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Enzymes can . . . (check all that apply)
Break molecules
Stabilize a reaction
Add molecules
rearrange molecules
build molecules
Is the following sentence true or false? A characteristic of rock is that each of the component minerals retains its properties in the mixture
Answer:
true
Explanation:
The sentence "A characteristic of rock is that each of the component minerals retains its properties in the mixture" is false.
How do we explain?Rocks are made up of minerals, which are naturally occurring, inorganic solids that have a definite chemical composition and a crystalline structure. The properties of a mineral are determined by its chemical composition and its crystal structure.
When minerals are mixed together to form a rock, the properties of the individual minerals may change because the minerals interact with each other and form new bonds. The new bonds may change the properties of the individual minerals, such as their hardness, density, and electrical conductivity.
Therefore, the statement A characteristic of rock is that each of the component minerals retains its properties in the mixture" is false
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lil huddy is travis scott
change my mind
Answer:
Yes
Explanation:
Yes
Answer:
how when your mind is set
Explanation:
What is an organelle?
Answer:
An organelle is a subcellular structure that has one or more specific jobs to perform in the cell, much like an organ does in the body. Among the more important cell organelles are the nuclei, which store genetic information; mitochondria, which produce chemical energy; and ribosomes
4.38 blood types of children. emily and michael both have alleles o and o. (a) what blood types can their children have? (b) what is the probability that their next child has each of these blood types?
(a) Blood types that Emily and Michael’s children can have are A, B, AB, and O. Since Emily and Michael both have alleles O and O, then they can only give an O allele to their children. This means that all of their children will have type O blood.
However, their children will also inherit one of the possible A or B alleles from the grandparents. The A and B alleles are dominant to the O allele, but they are also co-dominant. Thus, it is possible for their children to inherit an A allele from Emily and a B allele from Michael or vice versa. In that case, their children will have AB blood. Otherwise, their children will have A or B blood types, depending on which allele they inherit from each parent.
(b) The probability that their next child has each blood type can be found by using a Punnett square. Since Emily and Michael both have O alleles, their genotypes are OO. To find the possible genotypes of their children, we will need to cross them with the possible genotypes of their grandparents. The Punnett square below shows all the possible genotypes of their children and the probability of each genotype.
Possible Genotypes ProbabilityOO 1/4AO 1/4BO 1/4AB 1/4
Therefore, the probability of their next child having type O blood is 1, and the probability of their next child having type A, B, or AB blood is 1/4 each.
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When the distance of the seismic wave from an earthquake increases, the
Primary wave and the Secondary wave increases.
True or False
Answer:
False
Explanation:
the bending of which structures leads to the nerve signals that are interpreted as sound? multiple choice stereocilia auricle otolith flagella
The stereocilia are the structures responsible for bending and causing the nerve signals interpreted as sound. When the stereocilia in the inner ear are bent by sound waves, nerve signals are produced that are interpreted as sound. The following is an explanation of stereocilia.
The inner ear is home to the cochlea, which is responsible for hearing. The cochlea consists of tiny hairs called stereocilia, which are arranged in rows of increasing height. The stereocilia are connected to hair cells, which convert sound vibrations into electrical signals that are sent to the brain via the auditory nerve.
When sound waves enter the ear, they cause the stereocilia to move, which in turn causes the hair cells to produce electrical signals. These signals are then sent to the brain, where they are interpreted as sound.
Therefore, it can be concluded that the bending of stereocilia is responsible for the nerve signals interpreted as sound.
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HELPPP !! IM BEING TIMEDDD !! Which statement describes renewable resources?
A. Fossil fuels are a type of renewable resource.
B. Renewable resources are artificial.
C. Renewable resources replenish quickly.
D. Cheap energy often comes from renewable resources.
Answer:
C. Renewable resources replenish quickly
Explanation:
Renewable resources are ones that can be used repeatedly and are replenished quickly. These are resources that you cannot run out of, like wind energy, biomass energy (plant powered), and hydropower energy (water).
Answer:
c
Explanation:
1. The below sequence is RNA? How do you know?
ACCUUGAGACCAUA
Answer: DNA bases are A,T,C,G and here we have U which is not a DNA base therefore being an RNA strand. RNA bases are A,C,U,G.
We can identify the below RNA sequence by the presence of uracil because, in the case of RNA, thymine is replaced by the uracil.
what is RNA?
RNA (ribonucleic acid) is a complex high-molecular-weight molecule that participates in cellular protein production and, in some viruses, replaces DNA (deoxyribonucleic acid) as a carrier of genetic instructions.
RNA is made up of strands of ribose nucleotides (nitrogenous bases bonded to a ribose sugar) connected by phosphodiester linkages. Adenine, guanine, cytosine, and uracil, which replaces thymine in DNA, are nitrogenous bases in RNA.
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