Which of the following is the most reasonable hypothesis for why arthropods and

Question

Which of the following is the most reasonable hypothesis for why arthropods and plants seem to have colonized land before vertebrates did?: Once land had been colonized by plants and insects, vertebrates that could live on land full time would have exclusive access to new food sources as well as escaping predation, giving individuals that could spend more time on land a strong advantage When plants and insects were colonizing land 530-430 MYA, vertebrates had not yet originated in the ocean OIt was more important for plants and arthropods to colonize land to escape predators than it was for fish Plants and arthropods have shorter generation times than vertebrates, and so would have adapted to land faster

Explanation / Answer

Question 1: which of the following is the most reasonable hypothesis for why arthropods and plants seems to have colonized land before vertebrates did?

Answer: [C] It was more important for plants and arthropods to colonize land to escape predators than it was for fish.

Explanation: Arthropods diverged hundreds of millions of year before Cambrian explosion. Records suggest that arthropods may have adapted to terrestrial environment relatively late in their evolutionary history.

Question 2: Which of the following is not one of the challenges in living on land that organisms had to overcome?

Answer: [B] The possibility of tissues drying out.

Explanation: All the other options are real challenges of living ON LAND. Because even in case of water, Gravity is basic fact of life and aquatic organisms rely on the natural buoyancy of water to support their weight. So tissues drying out is really not related and is not a challenge to overcome for living on land.

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