Telomeres are found
a. in the middle of chromosomes.
b. at replication origins.
c. where DNA strands are joined together.
d. within genes.
e. at the ends of a chromosome.
E
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Imperfect conditions in flowers refer to which of the following?
A. how the flower shape looks B. whether there are missing parts such as petals C. where the flower grows D. how often the flower blooms E. whether sexual parts are missing
Which of these statements is true of the energy in an open system containing living organisms?
a. The system will quickly settle into equilibrium. b. This system will generate a net surplus of energy. c. There must be a net influx of energy to this system. d. Energy transfers cannot be tracked in open systems.
Colon cancer is the second most common type of cancer in the United States, second only to
a. lung cancer. b. breast cancer. c. skin cancer. d. prostate cancer. e. uterine cancer.
Which term indicates the evolution of many closely related species from one or a few ancestral species in a relatively
short period of time? a. microevolution b. preadaptations c. adaptive radiation d. allometric growth e. allopatric speciation