WorksheetsEvolution Review
Total questions: 39
Worksheet time: 21mins
Which of the following are selection pressures in nature?
Selective breeding by humans
Available food
classification of organisms
Competition for mates
Hot, dry climate
What is the cause of the biodiversity found on the planet today?
Populations or organisms adapting to different environments
An asteroid carrying organisms to Earth from another planet
Individual organisms acquiring traits to help them survive
A series of mutations leading to a KNOWN outcome
How would a warming climate affect the species in an ecosystem?
individuals might die off but a species cannot disappear completely
species would increase in number to offset the numbers killed by the heat
species that have never been seen before would suddenly appear
individuals best able to survive the heat would become more numerous
In a cooling environment, which species will have the best chance for survival?
the one with the smartest individuals
the one with the smallest body size
the one with the most genetic variation
the one with the largest population
Which of the following are examples of geographic isolation?
When a storm blows a population of finches to a new island so they can no longer mate with the finches on the mainland
A mountain range prevents two types of goat from mating, causing the gene pool to become less varied
Two populations of deer living near each other happen to mate during different times of the year
A deepening canyon cuts two populations of squirrels off from each other
Two populations of birds have developed different mating calls
What does the similarity of these structures tell us about these organisms?
They grow at different rates
they have a common ancestor
They evolved slowly
They do the same thing
What is speciation?
when a population reaches a balance and change is no longer occuring
when populations move away from each other
when species begin to pass on acquired traits and change their behavior
when two species can no longer interbreed
What do we call similar structures that were passed down from a common ancestor?
vestigal structures
variable structures
homologous structures
fossil structures
Occasionally a mutation produces a bird with a new characteristic. What determines whether this bird will be the beginning of a new species?
The bird must dominate the other birds and reduce their ability to reproduce
The bird must be able to live in the usual environment for that fish
The mutation must provide some type of advantage for the bird
The mutation must make the bird very different from other fish
Which two species are most closely related?
A and B
B and C
A and C
all are equally related
If two organisms have a similar body structure, what would an analysis of their DNA reveal?
their DNA is identical
there are more differences than similarities
there are many similarities
they have the same number of chromosomes
The theory of natural selection states that all living things evolved from a common ancestor. True or False?
True
False
Which evidence of evolution is most useful in following relationships between species?
DNA evidence
Anatomical evidence
Behavioral patterns
Bio-geographical location
What does being "fit" mean?
You have the largest muscle mass
You are best suited to live in your environment
You can run/fly the fastest in your population
You are over 6 ft tall and at least 180 lbs
Butterflies with large wings can fly away from predators faster. If a butterfly has small wings, it won't be able to fly fast enough and will most likely be eaten at a young age. Which is most likely going to happen to the butterfly population?
Small wing butterflies will stay the same in number.
Large wing butterflies will decrease.
Small wing butterflies will increase.
Large wing butterflies will increase.
The more variation in a species, the higher the chances of surviving. True or false?
true
false
What is speciation?
Differences among a species.
The ability to interbreed with another organism
Formation of a new species
Adapting to the environment
Which of the following is NOT an example of geographical isolation?
A mountain range rising
A river changing course
Food source becoming unavailable
Earthquake causing land to split
What is a vestigial structure?
Same structure, different function
Different structure, same function
A structure with no function
Why do all these organisms have the same leg structure?
They all need these legs to run
They all had a very similar diet
All these organisms have the same exact DNA structure
These leg structures were best fitted for their ancestors.
What is needed in order to natural selection to occur?
Variety in food source
Variation in a population
Variation in temperature
Variety of predators
The ability of an organism to produce many offspring, some of which may not survive is called
adaptation
overproduction
descent with modification
variation
What is suggested by the similarity of early embryos of different species of vertebrates?
They have evolved from a distant common ancestor.
they have homologous structures
They have similar environments in the past
none of the above
Two organisms that are closely related would have
very similar DNA sequences
no proteins in common
no common ancestry
completely different DNA sequences
True or False? Traits that are acquired during your lifetime can be passed down to future generations.
True
False
A bird that can easily outcompete other birds for food and that can produce many eggs has a high
fitness
mutation rate
number of vestigial structures
number of adaptations
The development by human scientists of a new color of Rose is the result of
artificial selection
natural selection
descent with modification
overproduction
Bill on a platypus (mammal) and the bill on a duck (bird)
homologous structure
analogous structure
vestigial structure
Which of the following is NOT an example of convergent evolution?
Cacti in N. America and Africa have the same body structures
Platypi and ducks that both have duck bills
Whales and bats that both have metacarpal finger bones
birds and bats that are both able to fly
Related species with a common ancestor develop into 2 or more different species
convergent evolution
divergent evolution
coevolution
Crabs and snail's shells
convergent evolution
divergent evolution
coevolution
unrelated organisms that evolve similarly due to the environment
convergent evolution
divergent evolution
coevolution
two or more species evolve in response to each other in the same environment
convergent evolution
divergent evolution
coevolution
Using the chart above, determine which animal is most DIFFERENT from humans
chimpanzee
Rhesus monkey
bullfrog
yeast
