Worksheets2021-2022 Evolution Test Review
Total questions: 20
Worksheet time: 21mins
In terms of Natural Selection, what is fitness?
A measure of how strong an organism is
A measure of how well an organism can survive and produce offspring
A measure of how well an organism can avoid predators
A measure if all of its offspring survive to adulthood
Select all of the conditions that must be present for Natural Selection to occur (there are 4)
Variation of individuals in the population
Overproduction (more offspring are born than can survive)
Acquired characteristics (traits an organisms acquires during its life can be passed on to its offspring)
Finite (limited) resources which leads to competition
Heritability of traits so it can be passed from parent to offspring
True or False. The frequency of favorable traits will increase in a population undergoing Natural Selection
True
False
An organism has the molecular amino acid sequence of:
ALA SER PRO LEU ISO
Which individual would be most closely related to that organsim?
ALA MET PRO ASP HIS
GLU MET ALA LEU ISO
ALA SER PRO LEU HIS
The diagram shows homologous structures. What can homologous structure indicated about two different organisms?
They always have the same lifestyle
They always live in the same habitat
They share a common ancestor
They are unrelated
Meerkats live in family groups. While females stay with the groups, less dominant male meerkats may leave a join a new family group. Which mechanism of evolution does this movement of male meerkats demonstrate?
Natural Selection
Genetic Drift
Gene Flow
Mutation
A population of plants has individuals with blue flowers and individuals with red flowers. Based on the graph, which flower color is more advantageous?
Blue
Red
Flower color doesn't matter
When gene flow occurs, such as when a wolf joins a new pack, how does the genetic variation (diversity in DNA) of the wolf pack change?
Genetic variation increases
Genetic variation decreases
Fitness of the individual wolves increases
There is an increase in the likelihood of mutations
Variations in a population is necessary for natural selection. How do those variations first enter the population's gene pool?
Mutation
Allele Frequency Zonation
Industrial Revolutions
Gene Pool Catalyzing
A wildlife biologist is studying a population of penguins at the South Pole. These penguins are endangered by global warming and the destruction of their habitat. How will natural selection produce change in the penguins?
Natural selection will only act upon the penguins with harmful traits and produce increasingly disadvantageous changes over several generations
Natural selection will act upon each penguin individually to produce advantageous changes within one generation
Natural selection will only act upon the penguins with advantageous traits and produce increasing disadvantageous changes within two generations
Natural selection will act upon the entire population of penguins to produce advantageous changes over many generations
This diagram of the fossil record represents changes in mollusks over millions of years. How can the pattern of change in the fossil record best be explained?
The mollusks were well adapted to their stable environment. A large, sudden change occurred in their environment so them mollusks with the bigger shells were better adapted.
The mollusks were well adapted to their stable environment. The mollusks hybridized with a smaller species of mollusk. A new species of mollusk with a bigger shell resulted.
The mollusks were not well adapted to their environment. The length of the mollusks’ shells changed gradually over time.
The mollusks were well adapted to their environment. Humans introduced a new species of mollusk that was not adapted and outcompeted the native mollusk species.
A biologist is studying two tortoise species with each species located on a separate island. The biologist believes there is a close evolutionary relationship between the two species based on several lines of evidence. Which statement could apply to this example?
The ancestors of each species came from different continents at different times.
The common ancestor of the tortoises probably came from the mainland continent.
The ancestors of each species evolved on the mainland and were brought to the islands at the same time.
In a population of woodpeckers, there are a few individuals with longer, stronger beaks. This trait allows the woodpeckers to eat a greater variety of insects. What is most likely to happen to the gene for longer, stronger beaks over time?
Its frequency will increase
Its frequency will decrease
Its frequency will stay the same
Its frequency will decrease slowly, then suddenly increase
Which condition is essential for natural selection to result in a new species?
Unlimited resources
An inherited variation
A static environment
A long life span
The diagram represents stages in the embryonic development of three organisms. The similarities in embryonic development shown in the diagrams suggest that these organisms –
are all members of the same species
have adaptations for the same environment as adults
may have evolved from a common ancestor
all undergo external development
One species of junebug has 25 offspring at a time while a second species has 100 offspring at a time. Why would having 100 offspring be advantageous for the second species?
It increases opportunities for offspring to compete for limited resources.
It increases the chance of the recombination of alleles, leading to genetic drift in the population.
It increases the probability that some offspring will survive long enough to reproduce.
