Reproductive success is measured by the:a
body mass of an organism.
b. number of viable offspring.
c. longevity of an organism.
d. population size.
e. amount of food it eats
b
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In the process of nitrogen fixation, if you start with 5 molecules of N2, you will need _____ hydrogen atoms and _____ ATP molecules to make _____ molecules of ammonia.
A. 15; 16; 5 B. 15; 80; 10 C. 30; 80; 10 D. 30; 80; 5
Endergonic reactions convert molecules with ____ free energy to molecules with ____ free energy, so they require a net energy input in order to proceed
a. higher; lower b. lower; higher c. zero; some d. some; zero e. chemical bond; no chemical bond
The pollen tube grows to or through
a. the stigma. b. the style. c. the ovary. d. the micropyle. e. all of these.
In photosynthesis C3, plants differ from C4 plants in
A. the way they capture light. B. the way they capture carbon dioxide. C. the kind of chlorophylls they have. D. None of the choices is correct.