Answer: According to me, At a chemical synapse, one neuron releases neurotransmitter molecules into a small space (the synaptic cleft) that is adjacent to another neuron. The neurotransmitters are contained within small sacs called synaptic vesicles, and are released into the synaptic cleft by exocytosis.
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The thymus gland
It's one of the most essential parts of a child's lymphatic system. Its missing means the child will be vulnerable to infection or will have a weakened immune system.
Answer:
<u>True!</u>
Explanation:
The longest geologic era was the Precambrian. It began with the formation of the earth about 4.53 billion years ago, and ended about 542 million years ago.
This means this period lasted approximately 3.98 billion years!
As such it's undoubtedly the longest geologic era by a long shot!
Mitochondria are known as the powerhouse of cells because they are responsible for the releasing of energy from food. For example: cellular respiration.