Tobacco mosaic virus (tmv) has been found in virtually all commercial tobacco products. why, then, is tmv infection not an additional hazard for smokers?

Look at the images of different rocks. which rocks have a fine-grained texture? check all that apply. 1 2 3 4 5

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?

What is the next step in muscle contraction after the actin changes shape