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Leno4ka [110]
3 years ago
11

Which of the following would best characterize an ecosystem? *

Biology
1 answer:
enot [183]3 years ago
7 0

Answer:

It would be the last one: All organisms as well as the climate, soil. water, rocks, and other nonliving things

Explanation:

The first one is an organism

The second one is a population

And the last statement is a ecosystem

Hope this helped

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Why is Mitochondria different in the cells of older people ?
Vlad1618 [11]
Well, mitochondria are the energy supplying organelles.

Knowing this, the mitochondria is different in the cells of older people because its been damaged, its called Mitochondrial Aging. When mitochondria age, just like us, they get damaged. And when they get damaged they damage our age, in a sense that we get older. This is how it is different in older people.
5 0
2 years ago
Use the model here to describe the transfer of matter and flow of energy from one trophic level to another within an ecosystem.
Andrews [41]

The food chain and food web are used to transfer energy. Plants, who are the primary energy providers in the ecosystem, use their chloroplasts to collect sunlight, which is then partially converted into chemical energy during photosynthesis.

a)

  • When herbivores eat (are the primary consumers of) plants as food, this energy is transferred to the primary consumers in the food chain.
  • This energy is stored in various organic products in plants. Then, the chemical energy contained in plant products is converted into kinetic energy, degrading the energy by turning it into heat. The secondary consumers come next.
  • Further deterioration will occur when these herbivores are consumed by secondary consumers.
  • Finally, energy will once more be destroyed when tertiary consumers eat the carnivores. As a result, the energy flow is only in one direction i.e., unidirectional.

b)

  • Additionally, the energy flow in a food chain adheres to the 10% law.
  • This law states that only 10% of energy is transferred from one trophic level to the next, with the remaining 90% being lost during the digestion process of the organism itself.

c)

  • There are typically fewer organisms at the top of an energy pyramid because It has the least quantity of energy, the top level of an energy pyramid has the fewest organisms.
  • Most ecosystems only have four trophic levels because there is eventually insufficient energy to maintain further trophic levels.

d)

  • For instance, let us assume that a plant at the producer level produces 1000 Kcal of energy.
  • When a primary producer eats this plant, it will only get 10% of the energy produced by the plant i.e., 1000/10 = 100 Kcal. the rest 90% will be used up by the plant itself for its metabolism.
  • Further when a secondary consumer eats the primary consumer, it will only get 10% of the energy produced by the plant i.e., 100/10 = 10 Kcal.
  • Lastly, as the tertiary consumer eats the secondary consumer, it will only get 10/10 = 1kcal.

learn more about ecosystem here: brainly.com/question/842527

#SPJ10

4 0
2 years ago
What is the magnification of the ocular and objective lenses used to achieve a magnification of 600X on the virtual microscope?
Anon25 [30]

The magnification of the eyepiece and objective lens used to obtain 600X magnification in the virtual microscope is 6.10.

<h3>What are microscope lenses?</h3>

Compound microscope lenses are called objective lens and ocular lens. The objective lens is a lens that is installed very close to the object being observed. The ocular lens is very close to the observer's eye.

With this information, we can conclude that 600X magnification in the virtual microscope is 6.10.

Learn more about microscope in brainly.com/question/18661784

#SPJ1

5 0
1 year ago
Part A
larisa86 [58]

Yes she will fall under her doctor's recommendation because she is taking prescribed amount of carbohydrate in one serving which can affect her blood sugar level and dietry fibre will have no effect on sugar level so separate portion can be taken.

Explanation:

Dietary fibres are also carbohydrates called cellulose which is not digested in our bodies. The addition of cellulose is just for adding roughage to the diet as it provides bulk to the diet.

The carbohydrate intake is very important in the meal plan as it readily provides energy. The glucose is the most easily used form of energy from the body in comparision to fat and proteins. The energy yield is 4 calories per 1 gram of carbohydrates.

The recommendations by doctor to Brianna is to have 30 grams of carbohydrate and can have dietry fibre in different portion. Thus, if she eats two servings for the diet she is following the instructions.

The dietry fibre has no effect on her sugar level but carbohydrate increment will cause raise in sugar level as insulin production gets down in diabetics and not using the carbohydrate as fuel.

7 0
3 years ago
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katrin2010 [14]
What can u explain more ur question
5 0
2 years ago
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