Has seasonal ice caps and possible underground water. a. mars b. earth c. venus d. jupiter

carbon atoms, hydrogen, oxygen, and nitrogen.

you should wear a lead protective shield when having teeth x-rays

hope i

-lavira : )

not necessarily. higher fitness requires the organism to be reproductive successful. for example, an organism at age 10 with 15 offspring is much more fit than an organism at age 15 with only 5 offspring.