WorksheetsEvolution Review
Total questions: 40
Worksheet time: 49mins
(a) is best known for his theory of (b) by the process of (c) .
This term describes the process by which a population changes over a period of time.
(a)
Determine whether the following statements about evolution are TRUE or FALSE.
Organisms that are best adapted to an environment are more likely to survive and reproduce.
The biggest organisms in a population survive.
Giraffes have long necks because they have to stretch them out to reach the leaves.
Survival of the fittest is required for evolution to occur.
Which of the following forms of evidence did Charles Darwin NOT use when developing his theory of natural selection?
Thomas Malthus' writings on overpopulation
The fossil record
DNA from Galapagos tortoises
Similar species of finches found in the Galapagos
Beneficial traits elected by the environment
Beneficial traits selected by a breeder
Example: camouflage of the peppered moth
Example: breeding only cows that produce the most milk
Darwin claimed that all species descended from a common
(a)
Darwin noticed that different, but physically similar species inhabited separate, ecologically (a) habitats.
Darwin noticed that animals like the glyptodont (seen in this image) looked similar to modern day species (like the armadillo), providing more evidence for...
genetic similarities
descent from a common ancestor
heredity
artificial selection
Many organisms produce (a) offspring than can survive. Many of those offspring will (b) , and only those with higher levels of (c) will survive long enough to (d) .
The gradual development and diversification of organisms from their earlier ancestors.
Natural selection
Evolution
Heredity
Artificial selection
Which of the following is NOT required for natural selection to occur?
Inherited variation
Best traits are always passed down
Survival of the fittest
Competition for resources
Organize the forms of adaptations to their correct category.
Cryptic coloration
evolved resemblance to another object/species
warning coloration to scare away predators
used to blend in to surroundings
What term describes how well an organism can survive and reproduce in its environment?
(a)
Rank the following organisms from MORE RECENT common ancestor to birds (1) to LESS RECENT common ancestor to birds (5)
Crocodiles
Snakes
Turtles
Amphibians
Bony Fish
This image is an example of what type of structure?
Analogous Structure
Vestigial Structure
Homologous Structure
Adapted Structure
The wings in this image are an example of what type of structure?
Analogous Structure
Vestigial Structure
Homologous Structure
Adapted Structure
Whales have remnants of leg bones, despite not have legs. This is an example of which type of structure?
Analogous Structure
Vestigial Structure
Homologous Structure
Adapted Structure
These types of structures go through similar development (thanks to a common ancestor) despite serving very different functions.
(a)
Many marine (water) animals have developed fins to help them swim, despite not having a recent common ancestor. This is an example of which type of structure?
(a)
SELECT ALL THAT APPLY - Which of the following can be used as evidence for evolution by natural selection?
Similar developmental stages.
Species living in the same environment.
Species using or not using traits.
Similarities between DNA sequences.
Which of the following can lead to variation within a population?
Mutations in the genetic code
Gene shuffling during reproduction
Individual species trying to be better.
Changes within an ecosystem.
Which term describes a population of physically similar, interbreeding organisms?
(a)
A gene (a) is the shared common group of all (b) present within (c) .
Natural selection selects an (a) to survive.
Natural selection acts on an organism's (a) because that interacts with the (b) .
Which term describes the number of times an allele occurs within a gene pool?
Genetic variation
Allelic frequency
Genetic frequency
Allosome
What is the allelic frequency of the black fur allele in this population?
(a)
The gene pool is shown for the fur color gene within a population. How many rats are there in this population?
(a)
Individuals (a) evolve during their lifetimes.
Organize these examples into the correct category of natural selection.
Individuals at one end of the curve have higher fitness
Average individuals have higher fitness
Individuals at both ends of a curve have higher fitness
Example: Peppered moth populations getting darker.
Example: short tails on cats mess with their balance, while really long tails can get in the way
Example: Both dark- and light-colored mice do better in their respective environments.
A change in allelic frequency following a dramatic reduction in the size of a population is known as genetic...
(a)
Which of the following could lead to genetic drift?
Volcanic eruption
Meteor strike
Migration
Evolution
A genetic (a) occurs when a (b) subgroup of a larger population (c) . Individuals in the new population may carry alleles that differ in relative (d) from the original population.
Genetic equilibrium occurs when...
allelic frequencies are changing.
allelic frequencies are not changing.
species are evolving.
a natural disaster happens.
What term describes the formation of a new species?
(a)
Reproductive isolation occurs when members of a population...
start breeding with another population.
stop breeding with other members of the same population.
stop breeding with another population.
stop breeding altogether.
Match the following examples with their corresponding form of reproductive isolation.
Birds of paradise evolving different colors to attract their mates.
Different species of Galapagos finch remain on their own islands.
Several orchid species flower at different times of year.
One species of lizard lives in the tree while another lives on the ground.
Populations stop breeding due to changes in courtship rituals or other behaviors.
Barriers like rivers and mountains prevent populations from breeding.
Two or more species reproduce at different times.
Species occupy different habitats within the same ecosystem.
(a) radiation (also known as divergent evolution) is the process in which a single species evolves into several distinct species.
(a) evolution is the appearance of similar characteristics in unrelated organisms.
(a) evolution is a form of coevolution when one species evolve in response to changes in the other. This relationship becomes so specific that neither organism can survive without the other. (b) coevolution describes how life and earth have evolved together (for example, photosynthetic organisms changing the composition of Earth's atmosphere).
