How many people must contract the same illness from food for it to be considered an outbreak?

the answer would be 2, if crossing over doesn’t occur 2 out of 4 of the daughter cells will have that allele.

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organ system-an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.

brain development. a child's brain undergoes an amazing period of development from birth to three—producing more than a million neural connections each second. the development of the brain is influenced by many factors, including a child's relationships, experiences and environment.

explanation:

carbon atoms, hydrogen, oxygen, and nitrogen.