Are there living beings devoid of cell
Are there living beings devoid of cell?
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The virus is though as the only alive beings that does not contain cells. Virus are comprised by genetic material (that is, DNA or RNA) enwrapped by a protein capsule. They do not contain membrane and cell organelles neither self-metabolism.
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Characterizes the fishes in accordance to the examples of representing beings, skin, basic morphology, respiration, circulation, thermal control, nitrogen waste and types of reproduction?
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What are zymogens? Briefly explain it.
Write down the differentiation between catabolism and anabolism?
After crossing the epididymides through which structures do sperm cells pass until exteriorization?
How can the hypothesis which asserts that chloroplasts and also mitochondria were primitive prokaryotes which related in mutualism with primitive anaerobic eukaryotic cells be confirmed?
How the depolarizations of neuronal membrane start?
Briefly state the phenomenon of Ozone hole?
Give a brief description of respiratory pigments? Which respiratory pigment present in arthropods? Which analogous molecule present in humans?
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