It controls what goes into and out of the cell

Biology

1 answer:

Taya2010 [7]3 years ago

8 0

Answer:

cell membrane controls the transfer of materials inside and outside the cell.

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For most terrestrial ecosystems, pyramids of numbers, biomass, and energy are essentially the same-they have a broad base and a

GaryK [48]

Answer:

b. at each step, energy is lost from the system as a result of keeping the organisms alive

Explanation:

Generally Ecological pyramids helps to visualise the structure of Ecosystem.Its diagrammatically showed the relative amounts of numbers of organisms ,their energy, and the amount of energy that is converted in living tissue as usable mass (biomass) at different tropic levels.

Basically, large amount of energy is lost as energy flow from one tropic level to another in an ecosystem. This can be explained with the second law of thermodynamics; which states that in the conversion of energy from one form to another in a system, there is always a tendency towards disorderliness.That is the entropy changes of the universe can never be negative.Relatively in a biological system, this means that energy is lost in metabolic process( glycolysis, chemeosmosis, assimilation, growth .......) as heat, as organisms at one tropic level is consumed by another at the next level, from the base to the peak of these pyramids.

The amount of energy transfer efficiency among the two successive tropic levels is obtained by dividing the energy transfer at present tropic level with the energy transfer at previous tropic levels and mutiply the results by 100% . This known as Tropic level transfer efficiency(TLTE) .

The lower energy efficiency between successful present and previous tropic levels in these pyramids accounts for the similarities.

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4 years ago

Which organism is able to cause an infection? O bacteria

frosja888 [35]

Answer:

I think it's white blood cells

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3 years ago

Why do ecosystems undergo succession

Sliva [168]

Answer AND Explanation:

In the process of succession, the species in an area will gradually change. Each species is adapted to survive and competes with other species under specific sets of environmental conditions. If these conditions change, then the existing species will be replaced by a new set of species which are better adapted to the new conditions that have evolved.

This process helps an ecological community to undergo a predictable change following the initial colonisation of a new habitat. The succession that occurs in new habitat uninfluenced by pre existing succession is called primary succession, where as succession that follows disruption of a pre existing community is called secondary succession.

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4 years ago

How can a large block of granite form layers like an onion?

Lelu [443]

When a rock is exhumed by erosion, fractures develop first at the corners cuz thats where stress is concentrated

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4 years ago

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Barometric pressure has been dropping all day. What weather conditions will most likely occur?

insens350 [35]

the answer is stormy weather

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