The ovarys_____ every month when releasing an egg.
A. Alternate
B. release an egg
C. none of these
Answer: A. Alternate
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________ reactions require an input of energy when electrons are gained, such as in the conversion CO2 ? CH4.
Fill in the blank(s) with the appropriate word(s).
In the geologic timescale, the sequence of eons and eras beginning with the earliest era and proceeding forward to the most recent era is
A. Cenozoic - Archean - Mesozoic - Paleozoic - Proterozoic. B. Mesozoic - Cenozoic - Paleozoic - Proterozoic - Archean. C. Paleozoic - Proterozoic - Archean - Mesozoic - Cenozoic. D. Archean - Paleozoic - Proterozoic - Cenozoic - Mesozoic. E. Archean - Proterozoic - Paleozoic - Mesozoic - Cenozoic.
Which of the following increase connectivity between patches?
A) edge effects B) matrixes C) boundaries D) corridors
Evidence that all living cells have a common origin is provided by:
a. the cell theory, which states that the cell is the basic unit of life. b. the fact that all new cells come from previously existing cells. c. the fact that cells are the building blocks of the most complex plants. d. basic similarities in cell structure and chemistry. e. the fact that cells are the smallest units that can carry out all life activities.