Answer:
2
Explanation:
X2-8 = -1
X2= -1 +8
X2= 7 (so, if you add 2, it will 9 square of 3)
Scientist and science teacher
The length of time a person has been alive is known as their physiological age.
Your genetic make-up, accumulated lifestyle choices, and other characteristics including demographics, dietary preferences, and exercise routines all contribute to your biological age. Psychological age is the age at which one feels, acts, and behaves; it is not always the same as chronological age, which is the number of years since birth. Therefore, if a person is mature or even just feels older than they are, they may have a psychological age that is greater than their actual age. The physiological age of a person is determined by their level of health and may or may not correspond to their chronological age.
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One interesting example here is when you have a certian species of birds for example and all birds from one same species have a different pattern of how their wings and body is colored. This goes for dogs and other animals as well. All of these are examples how variation withing a species related to Darwin's theory of evolution.
Answer:
Cells are responsible for the structures and functions of organisms.
Explanation: