21) The diagram below indicates modern classification of the relatedness of several groups of organisms. Which two groups are most closely related?
a. Amniota and Diadectomorpha
b. Diadectomorpha and
Solenodonsaurus
c. Lysorophia and Microsauria
d. Nectridea and Aistopoda

Joe is breeding cockroaches in his dorm room. he finds that the average wing length in his population of cockroaches is 4 cm. he chooses the six cockroaches that have the largest wings; the average wing length among these selected cockroaches is 10 cm. joe interbreeds these selected cockroaches. from earlier studies, he knows that the narrow-sense heritability for wing length in his population of cockroaches is 0.6. a. calculate the selection differential and expected response to selection for wing length in these cockroaches. b. what should be the average wing length of the progeny of the selected cockroaches?

When you run, you begin to breathe heavier and faster. your heart beats more quickly, bringing more oxygen to your cells. which organ systems are working together here?

What processes take place before the mature mrna exits the nucleus?