Answer:
The nucleus
Explanation:
It is the control center of the cell. It contains DNA, which tells the cell what proteins are to be made.
Answer: hey!
its important because it gives your brain a chance to rest and to reboot its self
Explanation: hope this helps (º–º)
Answer:
b. A deep, narrow river divides a population of hummingbirds.
Explanation:
Hummingbirds can fly across the river. The deep and narrow river can not separate a population of hummingbirds into two patches since hummingbirds from one side of the river can fly and reach to the other side of the river.
Without any geographical isolation, hummingbirds can continue to interbreed among themselves. The continued interbreeding would not allow their reproductive isolation and thereby would prevent the allopatric speciation.
Answer:
A. Ice
Explanation:
glaciers generally accumulate more snow ... and the buried layers slowly grow together to form a thickened mass of ice.
