WorksheetsCP Evolution Review
Total questions: 90
Worksheet time: 2hrs 37mins
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
Natural selection could not occur without
geographic isolation
variation in the population
stable environments
competition for unlimited resources
Two organisms that are closely related but not clones would have...
very similar DNA sequences
exactly the same DNA sequences
no proteins in common
completely different DNA sequences
In a population of ladybugs, black bugs are more successful in escaping predators. Overtime, this gene becomes more popular in the population and the ladybug population loses its red color. This is an example of?
Natural Selection
Mutation
Genetic Drift
Gene Flow
Lamarck’s ideas about evolution include the concept that differences among the traits of organisms happen as a result of
increases in population size.
the actions of organisms as they use or do not use body structures
an unchanging local environment
the natural variations already present within the population of organisms
Frogs living around a pond eat flies that are 3 mm in length. Flies range in size from 1 mm to 5 mm. The majority of the fly population is around 3 mm. Cold weather caused most of the 3mm flies to die off. What will happen to the population after this happens?
The flies will move to another environment
Fitness remains the same and the population continues to grow.
The species will diverge into two new species. One that eats small flies and one that eats large flies.
The flies will become extinct and the frogs will move to another pond
Two islands are represented above. What type of environment can you infer might exist on these islands?
Island A is loaded with predators.
Island B has selection against dark colored mice.
Island A must have environments where both light color and dark color mice are selected for.
Island A is a peninsula while island B is a volcano.
Based on this cladogram (also known as a dendrogram) which organisms are most closely related?
the gazelle and the desert toad
the ostrich and the rattlesnake
the Guila monster and the Chuckwala
the desert toad and the rattlesnake
When organisms can no longer mate, especially due to geographic isolation mechanisms, the outcome might be
Speciation - the two populations can no longer reproduce.
bottle neck - a small population leaves to form a new population
Genetic Drift - many organisms move into and out of the population
Founder effect - a natural disaster reduces the size of the population
According to the differences in the chart, which of these pairs of animals are more closely related?
Human and Chimp
Human and Lemur
Baboon and Lemur
Lemur and Chimp
Which trait do the Chimp and pigeon share from their most recent common ancestor?
jaw
fur and mammary glands
feathers
claw and nails
The effect of genetic drift on a population is
reduction in genetic diversity
increase in mutations
the birth of more males
a tendency to forage for food
The evidences of evolution such as the fossil record, embryology and biogeography all indicate
a common ancestor
mutations occurred long ago
organisms could will new traits when they wanted them
most organisms are not related
The diagram is an example of
humans inability to get along with nature
natural selection
how pesticide is ineffective
founder effect
When organisms mate during different seasons that is an example of which reproductive barrier?
behavioral
gametic
temporal
mechanical
When two related species of flowering plants have different structures so that each is pollinated by a different species of insect, what type of reproductive barrier is this?
mechanical isolation
behavioral isolation
temporal isolation
gametic isolation
Which rate of evolution says that organisms change the most when they first appear and then stay relatively the same for the rest of their existence?
gradualism
punctuated equilibrium
inclusive fitness
genetic drift
The change in allele frequencies in a population over time is referred to as...
microevolution
macroevolution
speciation
gametic isolation
