Life Science Adaptation and Change Unit 2

A species can develop genetic diversity __________.

• immediately

• over a short period of time

• over a long period of time

• over any period of time

Why does it take a long time to develop a new variety of tomato?

• Changes in traits happen gradually over many generations.

• Tomatoes cannot acquire new traits.

• A species cannot change over time.

• Many plants resist change.

If the environment changes, what must a species do to survive?

• migrate

• adapt

• change the environment back

• Species cannot survive a change.

Why was the light peppered moth able to flourish prior to the Industrial Revolution?

• there was less pollution.

• they blended in with the trees

• abundance of food

• the ability to fly

Which of the following is not a behavioral adaptation?

• A squirrel buries acorns to dig up and eat later.

• A honeybee does a dance to tell the other bees where to find flowers.

• Grass stops growing during a drought and begins growing again when it rains.

• The spines of a cactus protect it from animals.

To protect itself from herbivores, plants ___________.

• secrete toxins

• have thorns

• both secrete toxins and have thorns

• cannot do anything because they cannot protect themselves

What can cause extinction of a species?

• adaptations that overcome challenges of the environment

• adaptations that do not overcome challenges of the environment

• quick adaptations to change

• having behavioral adaptations

How can a rise in temperature cause a change in a polar ecosystem?

• Sea levels would rise.

• Sea levels would fall.

• Sea levels would fluctuate.

• Sea levels would stay the same.

Which of these environmental changes occurs most rapidly?

• forest succession

• human population growth

• decomposition

• tornado

Which of these is not an environmental effect of farming?

• increased air temperatures

• habitat loss

• soil erosion

• poisoned wildlife from pesticides