A population of rabbits lives in a forest where the winters have become much colder and snowier in recent years. Which of the following is the primary environmental pressure described in this scenario?

The rabbits' ability to dig burrows

The variation in fur color among the rabbits

The presence of new predators in the forest

The change to a harsher winter climate

Which statement best describes an environmental pressure?

A characteristic that an organism is born with.

A factor in the environment that challenges an organism's ability to survive.

The way an organism changes its behavior to find food.

An interaction between two organisms that benefits both of them.

Variation ensures that all individuals in the species will be equally affected.

It allows the entire species to migrate to a new environment more easily.

It guarantees that every individual will be immune to the new disease.

Some individuals might have traits that give them resistance, allowing them to survive.

Having brightly colored feathers

The ability to fly long distances

Possessing a stronger, thicker beak

The deer will instantly evolve new digestive systems.

There will be increased competition for the remaining food.

All deer will migrate to a different continent.

The deer will begin to prey on smaller animals.