WorksheetsNatural Selection
Total questions: 10
Worksheet time: 5mins
When the environment changes more quickly than a species can adapt, the species may become:
Cold
Overdeveloped
Overpopulated
Extinct
What theory proposes that organisms with traits better suited to their environment are more likely to survive and reproduce?
Acquired Characteristics
Embryology
Survival of the Smartest
Natural Selection
A fox with thicker fur than average would have a survival advantage over other foxes if:
There is more competition for food in the fox population.
The air temperature significantly decreases in winter.
A drought occurs, limiting the amount of water available.
A new disease appears that infects the foxes.
The fur of the snowshoe rabbit changes to a lighter color in the winter. This allows the rabbit to blend in with its surroundings. This change is an example of:
Adaptation
Extinction
Competition
Succession
Due to genetic inheritance, members of a species can be slightly different from another in their traits. This is known as...
Variation
Overproduction
Competition
Evolution
What is evolution?
A gradual change in a species over a very long period time.
One animal turning into a completely different animal.
Change in a habitat over time.
A trait that enhances survival.
Animals may fight, make threatening sounds,and act aggressively toward members of the same species. These behaviors usually occur as the result of:
Adaptation
Evolution
Competition
Variation
The finches on the Galapagos island were similar in form except for variations of their beaks. Darwin observed that these variations were useful for:
Attracting a mate.
Gathering food.
Defending territory.
Building nests.
The movements of individuals into or out of a population provides a source of _______ to a population.
Mutation
Camoflage
Variation
Punctuated Equilibrium
Organisms producing more offspring than are likely to survive in order to help ensure that at least some survive until adulthood is known as:
Variation
Overproduction
Competition
Evolution
