Which one do you need help on
<span>The elements that are found in a high proportion in Earth's crust are oxygen, aluminium, iron, calcium, potassium, sodium, and magnesium. But for your Option, I think it is B) Oxygen and Silicon. This is because Oxygen makes 46.6% while Silicon makes 27.7% of the Earth crust.</span>
3. Mechanical energy is the energy used by organisms to function and move.
3. The conservation of energy is the process in which organisms use up the energy in a cycle where nothing is wasted.
Hope it helped,
Happy homework/ study/ exam!
Answer:
Human, nervous system, nerve tissue, neurons.
Explanation:
The organism is the biggest, in this case is a human, a human is composed of systems, and then organ tissue, and organ tissue is made out of cells.
