Afield biologist observed and recorded the ground squirrel population in a forest ecosystem over a 40 year period.
during which years is the squirrel's ecosystem most stable?
hlight
0: 21: 43
a)
years 1-9
b)
years 10-30
years 31-37
d)
years 38-42

then that particular organisms become extinct.

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in a chemical reaction, the atoms and molecules produced by the reaction are called products. no new atoms are created, and no atoms are destroyed. in a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.