Answer:
B: Nucleus
Explanation:
The nucleus contains the cell's genes, controls the cell's growth and reproduction, and contains chromosomes which house the DNA.
It is small, round, and works as the cell's control center.
It's long cuz that's how there made.
Scientists believe that at first these bears scavenged seal carcasses that had washed ashore, and gradually began to hunt the seals by waiting at the water's edge as the seals surfaced to breathe. This is believed to be an important step in the evolution of a new bear species, the polar bear
Over time the new polar bears were used to the cold climate and learnt how to fish, they then separated from the grizzly bears, they developed new creatures which would help them survive in one of the most dangerous climate.
The answer would be Oxygen
Answer:
positive - reforestation provides a sustainable plan to use a renewable resource
(Please let me know if the answer is incorrect so I can edit it :) )