Which of the following is true about cells?
a. cells have specialized components that all perform the same functions.
b. a cell's components are all identical and perform the same function.
c. cells have specialized components that perform different, specific functions.
d. a cell has a single component that performs all of the cell's different, specific functions.

In german cockroaches, curved wing (cv) is recessive to normal wing (cv+). bill, who is raising cockroaches in his dorm room, finds that the frequency of the gene for curved wings in his cockroach population is 0.6. in his friend joe’s apartment, the frequency of the gene for curved wings is 0.2. one day joe visits bill in his dorm room, and several cockroaches jump out of joe’s hair and join the population in bill’s room. bill estimates that, now, 10% of the cockroaches in his dorm room are individual roaches that jumped out of joe’s hair. what is the new frequency of curved wings among cockroaches in bill’s room? 0.69 0.4 0.5 0.31 0.20

Aperson with age is more likely to catch diseases that healthy people usually don’t catch.what are these infections called?

Math focus 4. calculate a map has index contours at 250 m, 500 m, and 750 m. what is the contour interval?