Animals cells have a mitochondria, plant cells have a vacuole, a chloroplast and a cell wall for protection.
D because where there is deep n stuff
Nucleus, electrons are found in shells or orbitals that surround the nucleus of an atom, protons and neutrons are found in the nucleus. They group together in the center of an atom.
<span>I think the answer is A test cross can be used to: study how traits are inherited. </span>
Answer:
The amount of energy at each trophic level decreases as it moves through an ecosystem. As little as 10 percent of the energy at any trophic level is transferred to the next level; the rest is lost largely through metabolic processes as heat
