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mel-nik [20]
3 years ago
11

All cells contain a.dna. b.chloroplasts. c.nuclei. d.contractile vacuoles.

Biology
1 answer:
maria [59]3 years ago
6 0
Only eukaryotes contain upper three but all cells contain "Contractile Vacuoles"

In short, Your Answer would be Option D

Hope this helps!
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Explain why you know that diuron caused the coral to bleach.​​​​​​​
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4 0
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You discover a new type of gland associated with the skin. Chemical analysis of the product shows a secretion has a pH of 4, con
vagabundo [1.1K]
<h2>A) option is correct </h2>

Explanation:

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3 0
3 years ago
How does survival of the fittest help keep the ecosystem balanced
xz_007 [3.2K]

The former means those most fit, those with the best set of skills and features for the given environment, will live to pass on the said features in the offspring (with ants, for example, being incredibly fit and adaptable creatures). The latter suggests there is an objective way to measure the "meaningfulness" of each species and having only those most meaningful survive. But this differs from species to species - for a house cat, the great white shark is utterly meaningless.

 Also, the meaningful animal has no actual advantage over another to help him survive, whereas fittness is exactly that - it is the ability to survive, ability to pass on your genes.

 While I understand it may seem so in the case of domestic animals that the most meaningful to the human are those allowed to reproduce, it is actually the same law: those most adapted for human purpose (which, of course, in the given case means the most meaningful) ARE the fittest here in the human-controlled environment.

3 0
3 years ago
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