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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<span>Messages to the brain travel along the nerves, which are strings of long thin cells called neurons</span>
1. observing
2. forming hypotheses
3. testing hypotheses
4. analyzing data
5. evaluating results
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Actively transport molecules across the cell membrane
One of the oldest arguments in the history of psychology is the Nature vs Nurture debate. Each of these sides have good points that it's really hard to decide whether a person's development is predisposed in his DNA, or a majority of it is influenced by this life experiences and his environment.
