All organisms depend on C. ENERGY
I think the answer you are looking for is calorie with a lowercase "c". However the substance should be water.
Answer;
C.Identify each bird species by using a dichotomous key.
Explanation;
-A dichotomous key is a tool that is used to determine the identity of items in an ecosystem or a particular habitat, such as trees, birds, wildflowers, mammals, reptiles, rocks, and fish. To study the interactions of different birds , identifying each birds species using a dichotomous key would be an important and appropriate step.
Answer is B waxes it is a simple lipid
