for instance in humans, the somatic cells include 46 chromosomes which is the diploid wide variety (2n) and each sperm and egg has 23 chromosomes wherein one of them is the sex chromosome.
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It's a normal part of nature, and one of many ecological factors that help keep the hundreds of thousands of living plants. It also keeps animals in balance with one another.
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The endocrine system is a chemical messaging network. Endocrine glands secrete hormones, which are carried by the circulatory system throughout the body. The primary endocrine glands are the pituitary, hypothalamus, pineal gland, thyroid, parathyroid, adrenal, pancreas, ovary, and testis. Hormones maintain homeostasis in the body.
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In an experiment, that subjected participants to increasing isolation in a computerized ball-tossing game, fMRI scans showed activity in the cingulate cortex, a region of the brain that is active during EMOTIONAL PAIN.
Cingulate cortex is the limbic lobe involved in emotion formation, memory, learning, problem solving and self control.
If you are wanting to know what that is in English, the answer is 'How do I intentionally vomit?' If you want to know how to do that, I guess stick your finger down your throat.