Matter is anything that takes up space. Your mass determines how big, or small you are. Or, how big or small something is. Matter is in everything. Even air has matter. Humans are made of matter. Matter makes up atoms, carbon, cells, and everything else you can think of. (Except ideas)
You could record how much they eat how many times they swim around in a day you could weigh your species of fish.
Anthropologist use the term Enculturation to refer to the process of learning your culture, ordinarily as a child.
B. the rate will decrease. plants need carbon dioxide
"The male parts of the flower are called the stamens and are made up of the anther at the top and the stalk or filament that supports the anther."