As I know, the effects of human activities on biogeochemical cycling are <span>examples of an ecological study involves the ecosystem level of organization.</span>
Most likely A or E.. not completely sure but A and E<span />
The diagnostic term for beri/beri refers to <u>body weakness "weakness/weakness"</u> and is caused by the lack of thiamine (part of B complex: B-1) in the diet. Beri/beri typically attacks/damages the nerves and can further lead to loss of strength of muscles or worse case - paralysis.
Laboratory helps you identify things rather than the others using controlled variables
Muscle tissue is the outer layer that protects your muscles and helps them to move without falling off.
