Answer:
Two isotopes of the same element have the same number of protons in the nucleus, but differ in the number of neutrons. The nucleon number is equal to the total number of protons and neutrons in the nucleus.
Explanation:
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Starfish reproduce asexually by fission.
Answer:
It means that one either exactly resembles a parent or it does not.
Explanation:
A - They are all or none in amplitude.
This is the answer as answer choices b, c, d, and e are all characteristics of synaptic potentials.
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