An ecosystem is a closed system consisting of living and non-living things.
Trophic Level 1: Primary Producer
Trophic Level 2: Primary Consumer
Trophic Level 3: Secondary Consumer
Trophic Level 4: Tertiary Consumer
I would go with none of the above because the other answers might describe early mammals but they also describe the mammals that we have now.......
I HOPE THIS HELPS :)
The Virus is a single molecule of nucleic acid surrounded by a protein coat, and the capsid.
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Why virus is a cellular agent that possesses membrane-bound organelles?</h3>
The above statement is totally False because the Virus are the non-living agents and they required a host cell to complete their life cycle. The Virus can not be classified under and classification system. Lister first promoted the use of disinfecting agents prior to surgery. Virus are very small agents that rely on living cells to multiply. The Virus may use an animal, plant, or bacteria as a host to survive and reproduce the same virus inside the body of host.
So we can conclude that the Virus is a single molecule of nucleic acid surrounded by a protein coat, and the capsid.
Learn more about virus here: brainly.com/question/25236237
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<span>Organelles :) The mitochondria and nucleus are examples of organelles, and the cytoplasm is the medium in which the cell's activities takes place :)
Hope this helps</span><span>
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The answer is two identical copies of the parent cell