Which of the following is the primary function of the nucleus? Choose 1

(Choice A)
A
Breaking down unnecessary materials

(Choice B)
B
Producing ATP for the cell

(Choice C)
C
Absorbing sunlight

(Choice D)
D
Storing genetic material

Look at the figure above. which atmospheric layer has around 80 percent of the mass of the earth's atmosphere? (hint: it's where the clouds seen on earth are formed.) a. exosphere b. troposphere c. stratosphere d. thermosphere

Plz will mark! the diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

Of your good in bio kusing a series of preliminary observations; pstate a problem developed from these observations, formulate a hypothesis, design an experiment to test the hypothesis