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WorksheetsUnit 5 Benchmark
Total questions: 10
Worksheet time: 43mins
Taxonomy is best defined as the science of -
describing the regulation of genes.
studying microscopic life forms.
developing new species via genetic engineering.
classifying organisms based on characteristics.
The American lobster is (Homarus americanus) is most closely related to which of the following organism?
Cape Lobster (Homarinus capensis)
Common Lobster (Homarus gammarus)
Patagonian Lobster (Thymops bursteini)
Scarlett Clawed Lobster (Nephropsis atlantica)
Which of the following organisms from the table would be the most closely related?
Desert Iguana & Box Turtle
Chuckwalla & Bush Anole
Box Turtle & Bush Anole
Desert Iguana & Chuchwalla
Populations tend to produce more offspring than can survive based on the resources available in the ecosystem. When this occurs, the organisms most likely to acquire resources and survive are those members of the population with the -
most mutations.
most competition.
fewest strengths.
best adaptations.
When a gene increases an organism's ability to survive, and this organism goes on to reproduce more offspring with the same gene, what will eventually increase?
the carrying capacity of the population
the number of genes in the offspring
the frequency of the gene in the population
the number of mutations in the organism
Natural selection is the process that increases the frequency of beneficial alleles in a -
tissue.
cell.
organism.
population.
A plant population lives in a climate where rainfall is common. Over time, the entire plant population has become well adapted to these conditions. Which of the following would be the greatest threat to the entire population's survival?
mutations producing new alleles
a short period of increased rainfall
a period of drought
reduce numbers of herbivores
According to the diagram, which of the following pairs of insect groups likely share the most homologies?
aphids and bees
moths and mosquitos
bees and wasps
wasps and beetles
Based on the diagram, which pair of organisms most likely share the most recent common ancestor?
wolf and bison
wolf and horse
bison and horse
cannot be determined
The forelimbs of humans, birds, and porpoises have a wide variety of functions. WHich biological process is believed to have created the diversity of functions seen in these species?
respiration
natural selection
biomagnification
evolution
