I believe you could say glucose (or starches) or fats! Maybe even ATP (adenosine triphosphate)
Answer:
neurons - nerve tissue - brain - central nervous system - human being.
Explanation:
Reason: The Levels of Organization is organizing how everything in a human body is put together. Example: Neuron (or cell), tissues (that are made from cells that come together), heart (is created when groups of tissues come together), circulatory system (is made when other groups of organs come together to form a system that work with each other to maintain life), and then the is carries on with other systems that together form the human body
Answer: The mass of a tree is primarily carbon. The carbon comes from carbon dioxide used during photosynthesis. During photosynthesis, plants convert the sun's energy into chemical energy which is captured within the bonds of carbon molecules built from atmospheric carbon dioxide and water
Explanation: unknown science
I’m pretty sure it’s species :)