What was the first animal on the endangered species list? bald eagle
humpback whale
Great white shark
Saber tooth tiger

Hey me with this one❤☺❤ how do you say that a cell also has a life span and death like an organism? give one example.

When a person is exercising the body needs to deliver increased amounts of oxygen to the muscles which component of blood ensures that the muscles will receive it

Which best describes the nucleus of an atom a. it is where all of the particle s of the atom are located b. it is the negatively charged part of the atom c. it is where the electrons and the protons are located d. it is the part of the atom with the greatest mass