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iogann1982 [59]
3 years ago
8

A student made a model of an ecosystem inside a sealed plastic bottle. She

Biology
1 answer:
Anton [14]3 years ago
4 0

It illustrates the cycling of matter, just like in a natural ecosystem.

Option D.

<h3><u>Explanation:</u></h3>

The natural stable ecosystem is defined as the ecosystem which has the members doing their part of job and each and every member contribute to the stability of the ecosystem by completing food chains.

Here in this bottle ecosystem the boy put the stones, rocks, water which gives proper nutrition to the growing plants and animals which are also introduced by the boy. The plants produce oxygen and consume carbon dioxide whereas the animals consume oxygen and produce carbon dioxide. Thus the cycle is maintained and stability is achieved.

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Osmosis only deals with the movement of _____________ molecules from higher to lower concentration.
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3 years ago
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Ira Lisetskai [31]

The answer is (A) Mitochondria have their own DNA molecules, separate from the rest of the cell's DNA.

The endosymbiotic hypothesis concerns with the presence of two special organelles, mitochondria and chloroplast within the eukaryotic cell. These two organelles have their own set of DNA that is different from the nuclear DNA of the eukaryotic cell. It is believed that a primordial eukaryotic cell was in a symbiotic relationship with mitochondria-like bacterium. The primordial cell eventually engulfed the mitochondria-like bacterium for ATP production to power itself.

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Hard layers protects the animals are called​
ivann1987 [24]

Answer:

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Explanation:

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5 0
2 years ago
THIS MAY NOT BE BIOLOGY!!!
Anon25 [30]

The answer that is not caused by a gravitational pull is two atoms come together to form a molecule because atoms form molecules because of the electrons, and not gravitational pull.

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4 0
3 years ago
HELLO
Stels [109]

According to the principle of segregation, gene pairs for a trait are split during the formation of gametes.

<u>Explanation</u>:

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  • He understands that alleles encoding the traits of each parental plant are separated during the formation of reproductive cells.
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