Which are the thinnest blood vessels? which are the thinnest blood vessels? venules arterioles bronchioles capillaries?

The fauces connects which of th following structures to the oropharynx

Hurry which of these is true about index fossils? a) are very scarcely found b) used as guides in relative dating c) found in the youngest layer of the rock d) used as reference points in absolute dating

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