What type of evolution is this?
English ivy (Hedera helix) and wintercreeper (Euonymus fortunei) both have aerial rootlets that allow them to climb up and stick to bark on trees. As you can tell from their scientific name these plants are not closely related, but yet they have both evolved similar morphological structures used for the same purpose.
A. Analogous.
B. Convergent.
C. Radial.
D. Bivalent.
E. Both analogous and convergent.
B. Convergent.
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If a population was in Hardy-Weinberg equilibrium, then ____ would occur in that population.
A. directional selection B. an increase of recessive alleles C. no evolutionary changes D. assortive mating E. natural selection
Base pairs in DNA are held together by ________ bonds.
A. peptide B. hydrogen C. polar covalent D. nonpolar covalent E. sulfhydryl
If new genetic variation in the experimental populations arose solely by spontaneous mutations, then the most effective process for subsequently increasing the prevalence of the beneficial mutations in the population over the course of generations is
_____. A) transduction B) binary fission C) conjugation D) transformation
Which of the following statements regarding fungi is false?
A) Fungi are important decomposers in ecosystems. B) Fungi can break down only plant material. C) The distinctive flavor of certain cheeses is due to fungi. D) The first antibiotic discovered came from a fungus.