What is the approximate diameter of a capillary

Based on their location in the atmosphere, the layers are able to have their own special characteristics. for example, most weather occurs in the troposphere. what occurs in each of the other layers? (site 1)

In some plants, pointed leaves (p) are dominant over rounded leaves (p). a plant with a genotype of pp

Apaleontologist finds a plant fossil that shows that the plant had seeds. what can the paleontologist conclude?