When a bacterium damages humans belong cells and causes tuberculosis the human cells that affected in the lungs are?

What do animals wth echolocation have in common other than echolocation

What is the problem in this article? what solution does the article propose?

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?