The brain i think that is correct
B) the decay of once-living things
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The answer is D
Consulting their chemistry teacher and other students in class would not be in depth enough, so A and B are not the answers.
While consulting a chemistry textbook will be useful, the scientific journal is not the best choice.
However, the chemistry textbook would be great, and the periodic table of elements os necessary if they are doing a study about it so the best answer would be D.
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Answer:
Brain
Explanation:
The brain has nerve endings that responds to stimulations such as sensory stimulations
Answer:
B. The mutations were beneficial for each new environment.
Explanation:
