The cuticle
a. conserves water.
b. reduces absorption of carbon dioxide by the
plant.
c. relegates transpiration to the stomata.
d. helps prevent wilting.
e. does all of these
E
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Select all of the following that are true about cephalopods.
_____ They may be very large and can weigh over 1000 pounds. _____ They are very intelligent and are capable of learning by observation. _____ They lack a shell. _____ They are exclusively herbivorous. _____ They have a closed circulatory system
Which event occurs during a strong El Niño year?
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Two genes on each of four homologous chromosomes (HC) are described here, but only one of each
pair of sister chromatids is listed (HC1 and HC2). Capital and lower case indicate different alleles of the same gene. What four gametes will result from a single chiasma if the chromosomes have the following genes: HC1: Ab; HC2: aB?
a. Ab, AB, ab, aB b. Ab, Ab, aB, aB c. Aa, Bb, ab, Ab. d. Ab, Ab, AB, AB e. AB, AB, ab, ab
Which of the following is NOT true about
overactive alcohol dehydrogenase (ADH)?
a. the effects are the same as the effects of underactive ALDH b. people with overactive ADH can handle only small amounts of alcohol c. it causes an excess accumulation of acetaldehyde d. it is common in people of Asian descent e. people with overactive ADH are more likely to become alcoholics