Which of the following is studied by a population geneticist?
a. How selective forces change the allele frequencies in a population over time
b. How genetic traits and ecosystems affect the migration patterns of populations
c. How embryological development impacts the expansion of a population
d. How evolution causes the development of multiple species within a population
a. How selective forces change the allele frequencies in a population over time
@A population geneticist will study how selective forces change the allele frequencies in a population over time.
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Which of the following is true concerning a somatic cell mutation?
A. A small fraction of the gametes carry the mutation. B. Half of the gametes carry the mutation. C. All of the gametes carry the mutation. D. Only a small group of cells within the organism is affected by the mutation. E. All cells within the organism are affected by the mutation.
Answer the following statements true (T) or false (F)
1. Humans exert top-down pressures on white-tail deer. 2. Using insects from the original homeland to control invasive weeds is a form of biological control. 3. Resource partitioning enables similar species to coexist in a community. 4. Secondary metabolites can become essential feeding stimulants for some herbivores.
The number of individuals in a specified
portion of habitat is the population's a. distribution. b. carrying capacity. c. density. d. size. e. birth rate
Oxidation
A) involves the removal of oxygen atoms from a molecule. B) is endothermic. C) occurs when an atom accepts electrons. D) occurs when oxygen atoms are added to a molecule and energy released. E) is rare in biological reactions.