Which of the following is not an effect of global warming?
A. wetter coastal regions
B. expansion of forests in the temperate zones
C. melting of glaciers
D. rise in sea level
E. flooding of coastal agricultural land
Answer: B
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The wide-ranging effect of a single gene is called
a. heterozogosity. b. homozygosity. c. segregation. d. pleiotropy. e. co-dominance.
Using the table above, determine which age class year would hurt the population growth most if it were wiped out by disease
A) age class year 1 B) age class year 2 C) age class year 3 D) age class year 4 E) age class year 5
The Dunkers are a religious group that moved from Germany to Pennsylvania in the mid-1700s. They do not marry with members outside their own immediate community. Today, the Dunkers are genetically unique and differ in gene frequencies, at many loci, from
all other populations including those in their original homeland. Which of the following likely explains the genetic uniqueness of this population? A) population bottleneck and Hardy-Weinberg equilibrium B) heterozygote advantage and stabilizing selection C) sexual selection and inbreeding depression D) mutation and natural selection E) founder effect and genetic drift
Which muscle type is involved in the function of the digestive tract and blood vessels?
A. Smooth. B. Cardiac. C. Voluntary. D. Skeletal.