1) Each level losses<u> 90% </u>of energy that was contained in the previous level. 2)Protozoa (Producer), snail, shrimp, amphipods (Primary consumers), Salamander (Secondary consumer), Intestinal roundworm (Tertiary consumer), fungi (Decomposer).
<h3>
What is the 10% rule in trophic webs?</h3>
The 10% rule states that at each trophic level occurs an energy transference from one of the levels to the next, with only 10% being usable in each of them.
As a general rule, only about 10% of the energy stored as biomass at one trophic level -per unit time- ends up as biomass at the next trophic level -in the same unit of time.
The remaining 90% of energy is lost to the environment as heat.
The progressive reduction of energy determines the number of trophic levels (4 or 5).
In the xposed example,
1) Each level losses<u> 90% </u>of energy that was contained in the previous level.
2)
- 1st level: Protozoa ⇒ Producer
- 2nd level: snail, shrimp, amphipods ⇒ Primary consumer
- 3rd level: Salamander ⇒ Secondary consumer
- 4th level: Intestinal roundworm ⇒ Tertiary consumer
- 5th level: fungi ⇒ Decomposer
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Hi there! It is definitely not a law. A is our. It’s not a hypothesis, because it’s been proven numerous times. B is out. Speaking of which, that leads to theory, which makes sense, because it’s been proven numerous times, and it doesn’t exactly fit the definition of an observation. Theory definitely fits best out of all of these answers. The answer is C: A theory.
Answer:
G1/S checkpoint
Explanation:
G1/S checkpoint is one of the points in the cell cycle, between growth phase 1 and DNA synthesis phase, where a cell that has been damaged is sensed by DNA repair enzymes and further degraded by apoptosis. In cancer cells, there is mutation in these DNA repair enzymes and thus nothing to correct the cells from dividing even when damaged and thus there is no arrest of division and cells continue dividing
Environmental factors typically activate genes in a cell by causing the cell to transcribe specific DNA segments to mRNA for translation.
This interaction is an example of environmental factors affecting <u><em>genetic expression</em></u>. In these situations, the environment causes specific segments of DNA to be expressed, meaning they are transcribed to mRNA and subsequently used to form proteins.
Meanwhile, other parts of the genome remain or are forced to be silent. This can be a result of mutations or simple biochemical reactions between the environment and the genome.
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Answer:
Sexual reproduction produces genetic variation in offspring.
Explanation: