Based on these data, during which range of months does "flu season" occur in a typical year?
Answer: January-April
In a typical year, the tallest bars on the graph (representing peak flu deaths) can be found in the first third of the year. These correlate to a flu season that extends from January through April.
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Darwin’s experiments on phototropism illustrated that
a. plant stems bend away from bright lights. b. signals from plant roots control phototropism. c. an opaque cap placed over a shoot tip will cause a plant to bend toward light, but will inhibit growth. d. a translucent cap placed over a shoot tip will cause a plant to bend toward light, but will inhibit growth. e. a translucent cap placed over a shoot tip will cause a plant to both grow and bend toward light.
Which of the following acts in the small intestine to breakdown protein?
A) trypsin B) pepsin C) bile D) amylase
The founder effect is an example of genetic drift in which rare alleles occur at a higher frequency in a population isolated from the general population.
Answer the following statement true (T) or false (F)
Which of the following microbes produces a protein that kills a variety of insect pests?
A) Pseudomonas B) Haemophilus influenzae C) Bacillus thuringiensis D) Thermus aquaticus E) Plasmodium falciparum