The modern evolutionary synthesis of the 1930s and 1940s melded together Darwin's findings with ________.
A. chemistry
B. psychology
C. genetics
D. sociology
Answer: C
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Which of the following statements is false?
a. The systemic circuit initially carries oxygenated blood. b. Humans have an open circulatory system. c. The function of the heart is to generate pressure to make blood flow through the circulatory system. d. The rate of blood flow varies throughout the circulatory system. e. Excess interstitial fluid is returned to the circulatory system in the lymphatic system.
Which of the following statements is false?
a. Digestion of a meal begins in the mouth. b. Hydrolysis of proteins begins in the stomach. c. Most hydrolysis of fats takes place in the stomach. d. Absorption of amino acids takes place in the small intestine. e. Absorption of water takes place in the large intestine.
In 2017, Holen and colleagues announced the discovery of a 130,000-year-old site in California that they claimed contained a mastodon that had been butchered by humans (genus Homo). Why did some in the scientific community express skepticism and caution in accepting the findings?
A. Humans are not thought to have mastered sophisticated tool use by 130,000 years ago. B. Mastodons are thought to have gone extinct long before that. C. The level of cooperative hunting needed to take down a mastodon did not appear until much more recently. D. It is widely believed that Homo sapiens are the only humans to have occupied North America and they did not arrive until 20,000 years ago. E. Homo neanderthalensis, the dominant hominin of the time, was vegetarian.
Sister chromatids separate during
A. prophase of meiosis I. B. anaphase of meiosis II. C. metaphase of meiosis I. D. prometaphase of meiosis I. E. metaphase of meiosis II.