use your understanding of genetics and explain how a set of twins can result in one individual who is male and one who is female include concepts of miosis ovulation and fertilization in your answer.

Guard cells control which event? the growth of plants capture of solar energy gas exchange in leaves water absorption in roots

Which statement is a physical property? becomes moldy quicklyeasy to digestconducts electricity poorlydoes not burn

Nephrons, the functional unit of kidneys, are responsible for formation of urine. the sentences describe situations that are the result of problems in the urine formation process. for the nephron shown below, match each situation to the step in the urine formation process where the problem lies.