Answer:
The nucleic acids (DNA and RNA)
Explanation:
DNA as the genetic material which located in nucleus
RNA the number cellular activities
Answer:
D
Explanation:
Atoms and molecules are the smallest units of matter.
Answer:
Question is incomplete i have added full question with explanation and reaction see attachment.
Answer:
The answer should be C
Explanation:
If you look at the the graph, C points to the time period after mammals appeared. Since birds are mammals, they should have appeared after the time that mammals first came to be on Earth.
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