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denpristay [2]
3 years ago
15

Which factors characterize ecosystems? A. biotic factors only B. abiotic factors only C. both biotic and abiotic factors D. neit

her biotic nor abiotic factors
Biology
2 answers:
amid [387]3 years ago
8 0

C. both biotic and abiotic factors in earth most ecosystems have both abiotic and biotic systems. They actually need both in order to survive.

Zinaida [17]3 years ago
4 0

Answer: C. both biotic and abiotic factors

Explanation:

An ecosystem can be define as biotic community where living beings or biotic  factors of the environment interacts with the non-living components or abiotic factors of the environment. This interaction is necessary for sustaining life on earth as living beings are dependent upon the non-living physical environment for completing their life cycles.

Biotic factors includes the plants, animals, microbes, and other living beings. Abiotic factors includes the soil, water, air and sunlight.

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If a species makes up a small portion of the community by weight, yet exerts a disproportionate influence on community diversity
Marrrta [24]

Answer:

The correct answer will be- Keystone species

Explanation:

The structure of a community is largely determined by the number of species present in the community called species richness and the species diversity.

The species which can play an important role in determining the community could be of two types the foundation species and keystone species.

The species which directly influence the diversity of a community irrespective of their number and abundance is known as the keystone species.

In the given question since the question has discussed the species which disproportionately influence the diversity of the community is known as keystone species.

Thus, keystone species is the correct answer.

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As compared to developing countries, developed countries have a
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