The oxygen released during photosynthesis directly comes from:
a. carbon dioxide
b. glucose
c. ribulose bisphosphate
d. water
e. atmospheric oxygen
d
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A lawsuit, filed in 2009, challenged the idea that genes can be ____________________
Fill in the blank(s) with correct word
Of the following, which is the least recently
formed clade?
a. humans, monkeys, apes b. birds, alligators, lizards c. horses, donkeys, zebra d. dogs, wolves, foxes e. conifers, ferns, yeast
In the United States, oral contraceptives are the most common means of birth control. Indicate whether the statement is true or false
Choose the letter of the best match from the following:A. nitrogenB. calciumC. potassiumD. phosphorusE. magnesiumComponent of chlorophyll, activates many enzymes, divalent cation.
Fill in the blank(s) with the appropriate word(s).