2 then 1 then 3 you're welcome
Answer:There are four types of complex carbon-based molecules in all living organisms: proteins, carbohydrates, lipids, and nucleic acids
Explanation:Cells are the basic building blocks of living things. The human body is composed of trillions of cells, all with their own specialised function
Answer:
natural selection I guess
Secondary consumer is the answer.
It's a mutualism relationship because both species can benefit from each other.