Which chamber of the heart pumps blood into the pulmonary circuit?
A. left ventricle
B. left atrium
C. right ventricle
D. aorta
E. right atrium
Answer: C
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What are the four classes of large organic molecules important to life on Earth?
A. Carbohydrates, lipids, proteins, and sugars B. Carbohydrates, proteins, nucleic acids, and sugars C. Carbohydrates, proteins, lipids, and nucleic acids D. Carbohydrates, lipids, proteins, and enzymes
Water is a major limiting factor in which of the following biomes?
A) tundra B) savannah C) tropical rainforest D) coral reef E) temperate grasslands
While on the voyage of the HMS Beagle, Darwin:
a) wrote Origin of Species. b) studied Malthus's book Essay on the Principle of Population. c) discovered a love of sea travel. d) corresponded extensively with Alfred Russel Wallace about their ideas on evolution. e) nurtured his love of studying nature, exploring plant and animal diversity, and collecting fossils.
Which of the following is not correct about birds?
A. Their feathers are derived from reptilian scales. B. They have a low body temperature. C. They have large breast muscles. D. They have a fused collarbone. E. They have thin, hollow bones.