A volcanic eruption carves the island into two populations (A1 and A2, 50,000 individuals each). The rodents cannot cross the lava even when it has cooled
Immediately after the
eruption you take 100 individuals from each of populations A1 and A2, and sequence the
same 100 base-pair gene region in the mitochondrial DNA (mtDNA) of each individual.
You are shown a DNA sequence chosen at random from the total pool of 200 sequences;
can you tell which population, A1 or A2, it comes from?
A. yes
B. no
B
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What phenomena can cause fluctuations in anchovy fisheries?
a. Global Warming b. Coral bleaching c. El Niño d. Turbidity currents
In some regions, butterflies are emerging earlier than the flowering of herbaceous plants. This is an issue because
A) butterflies rely on the flowers for food. B) butterflies rely on the flowers for shelter. C) butterflies rely on the flowers to deposit eggs. D) herbaceous plants rely on butterflies for food.
Select the choices that are ways that the hypothalamus controls the activity of the anterior pituitary.
a. neurons of the hypothalamus b. releasing hormones of the hypothalamus c. inhibiting hormones of the hypothalamus
Which of the following is a complex carbohydrate that cannot be digested?
A) disaccharides B) starches C) fibers D) high fructose corn syrup