WorksheetsNatural Selection
Total questions: 20
Worksheet time: 11mins
What are the most studied animals in the Galapagos?
Finches
Tortoises
Turtles
Lizards
According to natural selection, light colored tree trunks would favor
light colored moths
dark colored moths
red colored moths
red and light colored moths
A physical trait favored by an environmental change can be called an
adaptation
extinction
possibility
mutation
A grizzly bear survives because he is well-adapted to his environment. When he reproduces he passes on those traits to his offspring. this process is called
Natural Selection
Selective Breeding
Random mutations
Variations in a species
Why might it be helpful for a species to have a lot of variations?
They can't be seen by predators
If the environment changes, they might be better able to adapt
It is helpful in asexual reproduction
They don't recognize each other
Which beak is probably best suited to crack open nuts?
1
2
3
4
The cooling lava in the desert where pocket mice live changed the light & sandy environment to a dark & rocky environment.
True
False
Which of the following is TRUE about the sandy desert environment? Read carefully.
Most mice have sandy, light-colored coat to match the environment where they live.
Most mice have dark colored fur to match the environment where they live like their ancestors.
Most mice contrast with their environment.
Most mice are heterozygous for fur color and therefore display both phenotypes.
The environment does not play a role in natural selection.
True
False
Why do beaks of the same bird species look different?
The birds chose to mutate to survive
Humans bred them to make the changes
The birds adapted over time through natural selection
Through non-random variation
