Answer:
The 11 positive protons cancel out the 11 negative electrons, and the overall charge of the atom is zero. So it neutral
Explanation:
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B. essential
We cannot store up amino acids on our body, but we can have amino acids through consumption of food. These amino acids of which the body cannot make is called as essential amino acids.
Answer:A cell is the smallest unit of a single or multicellular organism. They provide energy for the body of a multicellular organism, and can be specialized by the body for 1 specific task or many.
Explanation:
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The advantage of sexual reproduction over asexual reproduction is that the organisms produced are each diverse. For example, with bacteria, if each is genetically the same and there is a way to "kill" them, all of them will die. However with sexual reproduction, each organism will be different, and have natural selection, they will build up immunities and grow and change.