Which of the following is false concerning the
atom in the figure?
a. The number of protons and the number of
electrons are equal.
b. It has an atomic mass of 4.
c. Electrons are moving around the nucleus.
d. It has an atomic number of 2.
e. The number of electrons exceeds the
number of protons.
E
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In aquatic habitats, the upper zone of water where the availability of light supports photosynthesis by phytoplankton is called the ________ zone
Fill in the blank(s) with correct word
Which of the following is true about natural selection?
Select one: a. It acts on genotypes rather than phenotypes. b. It assures the survival of each fit individual. c. On average, it favors the survival of young with adaptive characteristics. d. It always selects for more complex forms. e. It always selects for forms that are a mutated variation.
Mutations occur ________ with respect to fitness
Fill in the blank with the appropriate word.
Photoautotrophs use light energy directly for ________.
A. both the production of ATP and NADPH and the reduction of carbon dioxide to glucose B. neither the production of ATP and NADPH nor the reduction of carbon dioxide to glucose C. the production of ATP and NADPH D. the reduction of carbon dioxide to glucose