QUESTION IMAGE
Question
reporting category 8. drill
what is the driving force of evolution?
a. mutation
b. natural selection
c. genetic drift
d. bottleneck selection
what structure is evidence for a common ancestor?
a. analogous structure
b. vestigial structure
c. homologous structure
d. bone density
a whale’s pelvic bone is an example of a:
a. homologous structure
b. analogous structure
c. vestigial structure
d. functional adaptation
a cladogram is used to show
a. ecosystem energy flow
b. reproductive success
c. evolutionary relationships
d. genetic mutations
binomial nomenclature includes:
a. class and family
b. kingdom and species
c. genus and species
d. phylum and order
which kingdom contains organisms that are autotrophic and have cell walls made of...
a. fungi
b. plantae
c. animalia
d. protista
which domain contains organisms without a nucleus?
a. eukarya
b. bacteria
c. archaea
d. both b and c
First Question (What is the driving force of evolution?):
Evolution's driving force is natural selection (D), as it's the process where organisms with favorable traits survive/reproduce more. Mutation (A) is a source of variation, not the main driver. Natural selection acts on mutations/variations. Genetic drift (C) is random, less impactful than natural selection for major evolution.
Homologous structures (A) are similar in anatomy (due to common ancestry) but may have different functions (e.g., human arm, bat wing). Vestigial (B) are remnants, not direct evidence of common ancestry. Analogous (C) are similar in function (convergent evolution), not ancestry. Bone density (D) is not related to ancestry evidence.
Vestigial structures (C) are remnants of organs/structures with no current function (whale’s pelvic bone, as whales don’t walk). Homologous (A) relate to common ancestry but functional similarity. Analogous (B) are for convergent evolution. Functional adaptation (D) implies a current function, which pelvic bone lacks.
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D. Natural selection