Which action is unable to produce variation?
A. Crossing over
B. Random alignment of chromosomes during meiosis
C. Asexual reproduction
D. Genetic recombination of alleles
E. Sexual reproduction
Answer: C
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Solar radiation:a
powers the hydrologic and other biogeochemical cycles. b. is essential for chemosynthesis. c. is the product of a massive nuclear fission event. d. is eventually released from fossil fuels. e. is eventually released via decomposition.
In photosynthesis, water is used as a source of replacement electrons for _______.
a) the Calvin cycle b) the citric acid cycle c) photosystem II d) the electron transport chain
The evolution of jointed appendages has made ________ very successful.
What will be an ideal response?
Production of ATP using the energy liberated when electrons from reduced chemical bonds are passed through the electron transport system is generally referred to as ________.
A. chemiosmotic B. substrate-level C. conformational change D. respiration