Membrane is the answer i think
2.7 oz of fish or other seafood
The heaviest elements settled in the Earth's center.
The Earth on the other hand starts with a core of iron and radioactive materials such as uranium and plutonium, which release energy in the form of heat, through a process known as nuclear fission. It went through a fusion stage - a "liquid-pasty" state - which allowed that, due to gravity, the denser materials sank towards the center, while the lighter ones floated towards the crust, a process called planetary differentiation.
Your immune system fights of disease
Answer:
D. Mitochondrion
answers to the whole quiz
1.a
2.c
3.b
4.a
5.c
6.a
7.a
8.d
9.d
10.a
Explanation: