Chloroplasts are thought to have originated as endosymbiotic associations when aerobic bacteria engulfed

photosynthetic cells. This relationship was favored by the production of ____ by the endosymbiont.
a. glucose
b. hydrogen ions
c. ATP
d. oxygen
e. water


ANSWER: d

Biology & Microbiology

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Natural selection results in ____

a. adaptation b. mutations c. new species d. genetic drift e. gene flow

Biology & Microbiology

Currently, the only possible cure for genetic disorders is ____

a. genetically modified drugs b. transplantation c. whole genome replacement d. gene therapy e. GMOs

Biology & Microbiology

Which of the following is not a common component of circulating blood?

a) blood plasma b) formed elements c) proerythrocytes d) platelets e) leukocytes

Biology & Microbiology

Under anaerobic conditions, pyruvate can be broken down by ____

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology