What is cancer?
a.) addition of new cells to replace damaged cells
b.) dna replication
c.) cellular death
d.) uncontrolled cell division

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?

Explain how scientists use geologic time to determine the age of landforms.

Which is the correct formula for photosynthesis