Cells function together to form tissues. the four main types of tissues in animals are

epithelial
blood
connective
muscular
nervous
bone

Rue or false siblings look simila rbecause they each have some traits of their parents.

About how much of the cell mass is watet

What do isotopes of uranium have the same number of? what do they have a different number of? a) same number of protons; different number of electrons b) same number of protons; different number of neutrons c) same number of electrons; different number of protons d) same number of neutrons; different number of protons