The heart is called the muscle

a : striated

b : smooth

c : cardiac

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.

Ascientist is conducting an investigation that involves water, silver, carbon dioxide, and oxygen gas which group of statements best describes all of the materials he is using in the investigation?

9. the history of life on earth is recorded in