What is semen? a) an exocrine gland near the opening of the urethra b) the testes located on the outside of the male body c) a combination of sperm and other reproductive fluids d) a production of fluid that gives the sperm nourishment -

Study the diagram of a cell. which structure is found only in plant cells and functions in the process of photosynthesis? w x y z

Nerve cells are specialized to respond to stimulitrue or false?

Parthenogenesis is a type of reproduction that does not require a mate. it’s rarely seen in birds and higher vertebrates. parthenogenesis involves the formation of a zygote. but this zygote is formed without fertilization. in parthenogenesis, in the absence of a male gamete, the ovum develops directly in the zygote.