Long before Charles Darwin, Jean-Baptiste de Lamarck understood all of the following ideas about evolution except that:
A) species change over time.
B) there is variation in populations.
C) evolution leads to adaptation.
D) natural selection is the primary cause of evolution.
Answer: D
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Red blood cells, also known as __________, contain the hemoglobin that functions in rapid transport of oxygen. Fill in the blank(s) with the appropriate word(s)
Which of the following statements accurately describe variation in human skin color? Select all that apply.
A) Human skin color variations is mostly determined by the types and amounts of melanin present in the skin B) Data supports a correlation between UV intensity and color variation C) On average, the skin color of indigenous people around the world correlates with the UV intensity of their environments D) Variations in human skin color can be quantified (measured) E) All of the above
The myofibrils consist of both thin filaments made of actin and thick filaments composed of
A. chitin. B. myosin. C. acetylcholine. D. troponin. E. tropomyosin.
Which division of the autonomic nervous system stimulates digestion?
What will be an ideal response?