WorksheetsEvolution Review
Total questions: 17
Worksheet time: 9mins
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
When does natural selection happen the fastest in nature?
when there is a large change to the environment
when the species are most closely related to eachother
when there are little to no mutations happening
when there is very little genetic diversity
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
Which of the following are adaptations for attracting mates in a population?
the protective bony armor on an armadillo
male lyrebirds mimicking the songs of other birds in the forest
the colorful plumage on a male peacocks tail
similar coloration of male and female red-tailed hawks
larger body size and antlers in bull elk
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
Which of the following would most likely prevent two populations of field mice from breeding?
Active time of day
Color
Average weight
Favorite food
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
How have 340 breeds of dogs emerged from wolves?
natural selection has allowed the toughest dogs to survive
humans have selectively bred dogs for desired traits
wolves have a diverse gene pool that contains many variations
dogs have been scattered by humans to many new places
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 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
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
What is an observation?
Data you can collect using your senses
Your explanation for the data you collect using your senses
What is an inference?
Data you can collect using your senses
Your explanation for the data you collect using your senses
What is a scientific theory?
An educated guess
A known fact
Absolute and unchangeable
the best explanation for a set of data or observations
