Narrow, parallel-veined leaves are characteristic of:
A) both monocots and dicots. B) many dicots.
C) non-flowering seed plants. D) monocots.
Answer: D
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You recently identified a novel protein that contains several membrane-spanning domains. You would predict that the amino acids embedded in the membrane would have ____ side groups
A. nonpolar B. negatively charged C. polar uncharged D. positively charged
Which of the following is the most responsible for success of humans as a population?
A. the ability to speak B. being bipedal C. the ability to transmit culture D. driving biological evolution through cultural evolution E. None of the answer options is correct.
What are the possible phenotypes of the children if the mother's genotype is IAi for blood type and the father is IBi?
(Use the Punnett square to verify your answer.) a. all AB b. A, B c. A, AB d. A, B, O e. A, B, AB, O
Smoking may increase your risk of lung cancer, but it does not affect the risk of bladder cancer.
a. true b. false