WorksheetsUnit 13 Review Biology
Total questions: 12
Worksheet time: 6mins
Why would birds of the same species develop different beaks if they live in different regions?
They have different food sources in each region, and the beaks need to be different.
The beaks are what females are attracted to, and they develop differently in each region.
The beaks are different because of gel electrophoresis, and that makes them look different.
How do fossils of animals that existed long ago help scientists understand animals today?
They show that animals have not changed.
They show that animals have evolved and may not even look similar any more.
They show that animals all have the same body structure.
Match the definition to the word.
A change in a species to ensure survival
adaptation
evolution
natural selection
Charles Darwin
species
Match the definition to the word.
Known as the father of evolution theory. Sailed on the HMS Beagle and studies animals on the Galapagos Island.
adaptation
evolution
natural selection
Charles Darwin
species
Match the definition to the word.
a natural process resulting in the evolution of organisms best adapted to the environment.
adaptation
evolution
natural selection
Charles Darwin
species
Match the definition to the word.
change over time
adaptation
evolution
natural selection
Charles Darwin
species
Match the definition to the word.
a group of organisms so similar to one another that they can breed and produce fertile offspring.
adaptation
evolution
natural selection
Charles Darwin
species
The white arctic fox is best suited for his environment because his white fur blends in with his snowy surrounds. This process of survival of the fittest is known as
populations
mutation
adaptive traits
natural selection
DNA
Traits you inherited from your parents are determined by
populations
mutation
adaptive traits
natural selection
DNA
A ________ is an accidental change in an organisms offspring.
populations
mutation
adaptive traits
natural selection
DNA
Traits that help an organism surve are called _________________
populations
mutation
adaptive traits
natural selection
DNA
__________ change over time, not individuals.
populations
mutation
adaptive traits
natural selection
DNA
