If nondisjunction occurs during meiosis II (to one of the cells resulting from meiosis I), how many of the final four products will be abnormal?
A. none
B. three
C. two
D. four
E. one
Answer: C
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Predict the rank order of the following locations from lowest species richness to highest species richness, using the latitudinal gradient of species richness to form your prediction:
temperate forest in North Carolina, steppe in Patagonia (southern tip of South America), rainforest in Costa Rica, boreal forest in Ontario (east-central Canada) A. Steppe in Patagonia, Boreal Forest in Ontario, Temperate Forest in North Carolina, Rainforest in Costa Rica B. Rainforest in Costa Rica, Temperate Forest in North Carolina, Boreal Forest in Ontario, Steppe in Patagonia C. Boreal Forest in Ontario, Rainforest in Costa Rica, Temperate Forest in North Carolina, Steppe in Patagonia D. Steppe in Patagonia, Temperate Forest in North Carolina, Rainforest in Costa Rica, Boreal Forest in Ontario
How did Thomas Malthus influence Darwin's thinking?
a. Darwin was convinced artificial selection could work in nature. b. Darwin realized species typically produce more offspring than needed to replace the parent generation. c. Darwin realized that the fate of humanity was dependent on artificial selection. d. Darwin believed the fate of humanity was dependent on natural selection. e. Darwin was convinced to publish his ideas about natural selection
Crossing over is limited to a single occurrence for a chromosome
Indicate whether the statement is true or false.
How does CO2 enter a plant?
A) Through the roots B) Through the stomata C) Through the stroma D) Through the grana