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WorksheetsBiology Staar Review: Cat 3-Evolution & Classification
Total questions: 100
Worksheet time: 2hrs 35mins
What is suggested by the anatomical similarity of different species of vertebrates?
no evolutionary relationships between the groups
recent common ancestry
similar environments in the past
evolution from a distant common ancestor
Other insects cannot, but, a bumble bee has just enough weight to open up the snapdragon flower and pollinate. This adaption is ....
convergent evolution
co-evolution
divergent evolution
speciation
The combined alleles of all individuals in a population is called the population's
phenothype
gene pool
mutation rate
allele frequency
How does natural selection lead to evolution?
Stronger offspring kill weaker members of the species.
Helpful variations accumulate among surviving members of the species.
Overproduction provides food for stronger members of the species.
Environmental changes favor weaker members of the species.
Two organisms are considered to be different species if —
they have different body colorings
they live in different locations
they cannot interbreed and produce fertile offspring
are different in size
What effect can bottleneck events have on populations that have nearly become extinct?
Bottleneck events lead to increased gene flow and genetic diversity.
Bottleneck events have no impact on populations that have nearly become extinct.
Bottleneck events lead to the founder effect and eventually increase genetic diversity.
Bottleneck events reduce the size of the population and greatly reduce genetic variation.
Changes in the gene pool over time.
Mitosis
Genetic Variation
Gene Pool
Genetic Drift
