Answer:
Darwin was reluctant to publish his ideas because they went so strongly against the ideas of the day. Darwin thought that the society was not yet ready for his ideas, and he knew that there would be a lot of protest.
Explanation:
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Answer:
A synapse.
Explanation:
This is where signals are transmitted through the brain, but cannot connect two neurons. The space is called a synapse.
Answer:
20
Explanation:
Amino Acids can be arranged in different ways. The books say there are only 20 amino acids.
Hydrogen,ammonia,methane,water