Grams would be the correct answer hope this helps!
You could record how much they eat how many times they swim around in a day you could weigh your species of fish.
Answer:
D, Carbohydrates
Explanation:
(C⋅H2O)n is the chemical compound of carbohydrates. The carbon is bonded with water. Carbohydrates literally means: Carbon hydrate, hence Carbon(C) and water(H2O).