Answer:
First, what's the condition? Then I could help.
Explanation:
Two functions of the skeleton system are:
- It is a support structure for the body
- It provides protection our internal organs
Trees are examples of biotic factor which includes living things in which the size ranges from minute or small to large, referred to as micoorganism or macroorganism. Abiotic factors on the other hand, are non-living things which are soil, temperature and sunlight, in this case.
D. Would be the correct answer.
