In a system, changes in one part can control what goes on in the system as a whole. Which answer explains how different parts of a system can be interconnected?
A. The output from one part can become the input to other parts of the system.
B. The outputs of a system are never changed by the inputs of the system.
C. The outputs of a system always leave the system.
D. The inputs of a system always come from outside the system.

the unequal cytoplasmic division that  results  in  one egg  and three polar bodies ensures that a fertilized  egg has  ample nutrients  forits journey  to  the uterus.

the three components of a nucleotide are the nitrogenous base, the phosphate group and the five-carbon sugar.

he forelimbs below belong to four species that descended in a direct line from the ancestral mammal shown above. of the four descendants shown, which species most likely appeared earliest in evolutionary history?

can i pls have the choices?