Please explain im confused

A- East coast of South America and west coast of Africa.

Explanation:

The question is asking which parts of continents should have similar fossils with each other. According to the theory of continental drift, all of the continents were once one piece of land. The organisms lived there and turned into fossils. Eventually when the land split into different continents, the areas of the fossils were split apart from each other. Like pieces of a puzzle, you can see that the east (right) side of South America and the west (left) side of Africa were once connected, so it makes sense that the fossils would be very similar.

clumped distribution, because you'de have all of the population gathered in a relatively small are.

it's the most common because it provides protection and a mate for reproduction

example: humans, seeweed, cattles, etc.

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consuming the right balance of protein, carbohydrates and fat can you maintain a healthy weight and optimize your energy levels. protein and carbohydrates both contain 4 calories per gram, while fat provides 9 calories per gram.