Which of the following is most likely to be observed by a physiologist? a.) atp is made up of adenine, ribose, and a phosphate chain. b.) bone is a rigid connective tissue. c.) hormones control the rates of reactions and regulate blood pressure. d.) the nervous system is composed of neural tissue.

The diagram below shows the layers of a rock having a trilobite: a rock column labeled rock is shown. the column has three layers. the bottommost layer of the rock has one shaded rhomboid shape, the middle layer has a rhombus with a diagonal along with two identical organisms marked as, trilobite, in the key, the top layer has two semicircles. a key is shown on the right side of the diagram. the shaded rhombus is marked as a, the rhombus with the diagonal is marked as b, the semicircle is marked as c which statement about the rock fossils is true?