5.2: Natural Selection

Multiple Choice

A bear hunts for a fish down by the river and captures one. Which type of symbiotic relationship is described?

• Commensalism

• Parasitism

• Mutualism

• Predation

Multiple Choice

A variation is . . .

• when organisms have camouflage like spots or stripes

• an organism from a different dimension

• when you order different food than your friend

• differences between organisms in the same species

Multiple Choice

If an population can't adapt fast enough, this might happen.

• hibernate

• stay the same

• live longer

• become extinct

Multiple Choice

TRUE or FALSE: Mutations are random

• TRUE

• FALSE

Multiple Choice

Mutations are important because they bring about

• death of the organism in which they develop

• genetic variation needed for a population to evolve

• benefits for the individual, not for the population

• Hardey-Weinberg equilibrium within a population

Multiple Choice

Which of the following explains adaptation.

• An individual organism changes to meet its needs in the environment. These changes pass down to their offspring.

• The species as a whole changes their characteristics.

• Beneficial traits allow organism to survive and pass on those traits

• New characteristics arise in a species as needed.  If these traits are helpful, they are passed down.

Multiple Choice

The bird population that will most likely survive an extreme environmental change would be:

• Birds that can only eat seed

• Birds that can only eat insects

• Birds that can eat seeds and insects

• Birds that can eat seeds, insects, and worms

Multiple Choice

Which of the following is a factor in natural selection?

• Individuals of species compete with one another to survive.

• All species are genetically diverse.

• Individuals better able to adapt to changes leave more offspring.

• All are correct