Why is a rapid strep test so important?

The ancestors of plants that lived in water had plenty of water for the young. angiosperms are a group of land plants that evolved a reproductive trait for living on land. this trait protect young plants by allowing them to grow only when water is present and the conditions for healthy development are right. what trait most likely young angiosperms in this way?

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above

What is the membrane that sheath of schwann cell containing cytoplasm and nucleus that encloses myelin