Alberto has volunteered for a sleep experiment, and the researchers are looking at a printout showing Alberto's brain waves a few minutes ago. The printout shows a pattern of long, slow waves--so long that he appers to have only one wave each second. Alberto is in

In a classic experiment using pea shape, mendel conducted two separate genetic crosses. in the first cross the parent plants were “true breeding” for pea shape; one had round peas ( r )and the other had wrinkled (r). the first cross produced a filial 1 generation of all round peas. in the second cross, mendel bred plants from the filial 1 generation. this cross produced different results. out of approximately 1000 plants, about 75% were round and 25% were wrinkled.

The term life cycle includes the entire process of: adults defending their young providing a conducive environment adults producing gametes fertilization the growth of the offspring to adulthood

If a young male's body is just beginning the process of producing sperm, when is it likely that he would ejaculate mature, viable sperm"