The earliest atmosphere on earth was composed of
A. Oxygen, carbon dioxide and nitrogen
...
Biology, 03.08.2021 02:50, highschoolboy
The earliest atmosphere on earth was composed of
A. Oxygen, carbon dioxide and nitrogen
B. Carbon dioxide steam nitrogen nothing and ammonia
C. Hydrogen and helium
Answers: 3
Biology, 21.06.2019 19:30, AaronEarlMerringer
Animal bodies (and even plant bodies for that matter) are complex enough that life couldn't exist without enzymes. enzymes are usually large, complex biological catalysts that are expensive to make. enzymes speed up the rate of chemical reactions without being used up during the reaction (they can be reused many times). they are highly specific in the reactions they regulate. knowing what enzymes are and how they function, why does this explain why complex life forms could not exist if there were no enzymes.
Answers: 1
Biology, 21.06.2019 23:20, mikealonso
Ascientist wants to determine the effect of a new type of gasoline. he fillsone car with normal gasoline and another identical car with the new gasoline. which is the control group? a. the new type of gasolineb. the car with the normal gasolinec. the car with the new gasolinethe amount of gasoline usedd. the amount of gasoline used
Answers: 1
Biology, 22.06.2019 03:00, AtlFan6392
When mendel crossed a true-breeding short plant with a true-breeding tall plant all the offspring were tall. which term describes the gene for tallnes?
Answers: 1
Biology, 22.06.2019 06:20, justinamber89
Cells are adapted to preform specific functions. which of the following terms refers to this capability?
Answers: 2
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