What type of cell division is occurring in the diagram to the left?
A. Mitosis I and Mitosis Il
B. Meiosis I and Meiosis Il
C. Synthesis
D. Mitosis I and Meiosis Il

Ablastocyst is a group of cells that forms after a human egg is fertilized. the blastocyst consists of two types of cells. some of these cells will become the placenta. what do the other cells develop into?

Describe the response the kidneys have to dehydration and excessive water intake. what happens to the concentration of urine in each case ?

The fish shown above is a tarpon. it is a fast-swimming and powerful open-water fish. its closest relatives, oddly, are burrow-dwelling conger eels that stay on the bottom. both eels and tarpon developed from snake-like larvae that float in the plankton during the first stages of life. once they mature, tarpon and eels are not found near one another in the ocean. the tarpon and the eel illustrate all of the following except