Which of the following statements about energy is incorrect?
A. Chemical bonds store potential energy.
B. All forms of energy can be converted to heat.
C. A boulder perched on a hill has kinetic energy.
D. Energy is defined as the ability to do work.
E. The biological world gets its energy from the sun.
Answer: C
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Depurination is a type of mutation where a purine base is lost, but the DNA backbone remains intact. Which of the following are likely to occur as a result of depurination?
A. An incorrect base can be incorporated in the next round of replication. B. A deletion will occur, and there will be an overall loss of a base to the DNA strand. C. Repair enzymes will recognize the error and replace the defective nucleotide. D. All of the above are correct. E. Both a and c are correct.
Not all plants can use the C4 pathway to avoid photorespiration
Indicate whether the statement is true or false.
People who undergo radiation therapy sometimes develop anemia resulting from a decreased production of red blood
cells. This is because radiation affects:a. spongy bone. b. osteoblasts. c. osteoclasts. d. lacunae. e. metaphysis.
In aquatic ecosystems, zooplankton are consumed by phytoplankton.
Answer the following statement true (T) or false (F)