Males of some animal species have a display area where they compete for reproductively available
females. This area is known as:
a. a lek.
b. a home range.
c. a pride.
d. a territory.
e. a hive.
A
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Which of the following is an enzyme used in cloning that breaks covalent bonds?
A. DNA ligase B. restriction endonuclease C. reverse transcriptase D. DNA polymerase I E. polynucleotide kinase
Which part of the seed produces hydrolytic enzymes that break down the starchy endosperm during seed germination?
A. scutellum B. amyloplasts C. aleurone layer D. plumule E. coleorhiza
A researcher in a lab finds a microscopic organism that is a producer. Populations of this organism are found in
extreme environments (e.g., hot springs). The researcher will correctly identify this organism as belonging to the domain ____.
a. Amoeba b. Eukarya c. Archaea d. Bacteria e. Animalia
Which statement concerning phytochrome-induced responses is false?
a. All responses are very rapid and short-term. b. Red light causes potassium channels to open. c. The absorption of light by one part of the phytochrome molecule triggers a conformational change in another part. d. Phytochrome activates transcription of the gene for a subunit of rubisco. e. Far-red light causes potassium channels to close.