Which of these results would you predict to occur if climate change results in increased warming global temperatures?
A) Species competition will result in slower evolution in the tropics.
B) The tree line (at which it is too cold for trees to grow) moves toward the north and south poles.
C) Winters will be longer toward the poles.
D) Land animals will suffer fewer consequences than marine animals.
B
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What is the correct order of these meiotic events?
A Segregation of homologous chromosomes to opposite poles. B Segregation of sister chromatids to opposite poles. C Alignment of homologous pairs on the midplate of the cell. D Pairing and synapsis of homologous chromosomes. E Condensation of chromosomes in a diploid nucleus. A) CDEAB B) DCEBA C) EDCBA D) EDCAB E) DCABE
Which type of plant hormone can be produced by boiling DNA?
a. salicylic acid b. auxins c. cytokinins d. abscisic acid e. jasmonates
The rungs of the DNA ladder are formed by base pairs
a. joined by covalent bonds. b. joined by hydrogen bonds. c. joined by ionic bonds. d. NOT joined to each other
In the analogy where the liver is like the sewage treatment plant, the kidneys are like
A. the trucks that take the waste out of town. B. trash cans where the waste is stored. C. the people who produce the waste. D. the trucks that carry the waste from the people who produce it to the treatment plant. E. trucks that produce the waste.