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slega [8]
3 years ago
11

18. Approximately when did the first plants and arthropods appear on land?

Biology
2 answers:
quester [9]3 years ago
5 0

Answer:

C.

Explanation:

LenaWriter [7]3 years ago
3 0

Answer:

C. 444 Ma

Explanation:

The first plants that managed to colonize the land appeared around 470 million years ago, while the first arthropods on land appear i the fossil records around 450 million years ago, so we can say that around the period of 444 million years ago they were well established on land. The first arthropods that started to have terrestrial life were almost identical to those in water, with only minor changes that enabled them to breathe and move more easily. The first plants on land were non-vascular plants. They were small as they initially didn't had deep and well established roots.

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marshall27 [118]

The question is incomplete, however, the statements associated with this question is given in the comments and here as well:

Neither facilitated diffusion nor osmosis requires cell energy.

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Answer:

The correct answer is - Active transport requires cell energy and osmosis doesn't.

Explanation:

Osmosis is an example of passive transport as it does not require energy to facilitate the movement of solvent In the process of osmosis,. It moves from high concentration to low concentration through the semipermeable membrane which is along the gradient so no requirement of energy.

In the case of Active transport, it requires energy to facilitate the movement of transport as it is the movement of a substance from low concentration to a high concentration area that is against the concentration gradient.

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3 years ago
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Korvikt [17]

Answer:

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Explanation:

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7 0
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vovangra [49]
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