Which statement is true of the chromosome shown in figure 5.2?
select one:
a. its telomeres have been shortened due to repeated cell division.
b. its centromere has been lost during the copying of dna.
c. its sister chromatids have spindle fibers attached.
d. its left and right halves carry identical genetic information.

Which mantle is under the crust the upper mantle or the lower mantle i think it's upper let me know if i'm right

Hurry i need your (100 points) 1) what are the responsibilities of the region of the brain highlighted below? (picture located below) the highlighted portion is at the rear base of the brain, behind the brain stem. regulating homeostasis, hunger and eating, thirst and drinking, and many other functions of basic survival. coordinating movement and balance by using information from sensory nerves, including hand-eye coordination. controlling voluntary body movements, processing information from sense organs, thoughts, and learning abilities. regulating important involuntary bodily functions such as blood pressure, heart rate, breathing, and swallowing. 2)which of the following systems or structures is correctly paired with its function? neurons - brain cells that control thoughts, calculations, and memory cerebral cortex - portion of the brain that controls involuntary body movement peripheral nervous system - carries impulses to and from the central nervous system central nervous system - carries information from the nerves to the muscles and glands

Why does the earth spin slowly, not faster? is it possible to prove it scientifically? can you prove it with math?