Adaptations TEST REVIEW

Jed is studying how invasive organisms are plants or animals that are introduced into a new area. The new plants or animals compete with the native species in the area. Sometimes the new organisms, such as plants, grow very quickly. How can Jed describe what will most likely happen to the native organisms that compete with the invasive organisms?

• Their numbers will increase.

• Their numbers will decrease.

• Their numbers will stay the same.

• Their numbers will go down, then up.

1. Dimples
2. Tanned skin
3. Blue eyes
4. Short hair

Which of these characteristics are inherited?

• 1 and 3

• 2 and 4

• 3 and 2

• 1 and 4

Brianna is making a list of ways that animals can affect an environment in a positive way. She writes her notes below:

A. Bees and birds spread pollen from plant to plant.

B Nonnative animals can upset the balance of nature.

C. Decomposers add nutrients to the soil.

D. Invasive plants take over space and use up nutrients.

Not all Brianna's notes show the ways animals affect the environment in a positive way. Which of Brianna's notes are NOT positive ways?

• Notes A and B

• Notes A and C

• Notes B and D

• Notes C and D

How would increased rainfall affect organisms in a specific area?

• No effect

• No organisms would be harmed

• Some would benefit, some would be harmed

• All organisms would be harmed

A Burmese python is a predator that feeds on other animals. The Burmese python is not a native species in Florida. It was introduced to the Florida Everglades. Over the years, the population of Burmese pythons has increased.

Which of the following best describes the effect of Burmese pythons on the native animals in the Florida Everglades?

• It has helped the native species increase in numbers.

• It has made it more difficult for native animal species to survive.

• It has led to an increase in tourists in the Everglades National Park.

• It has taken up space needed by the native plants of the Everglades.

Black and brown bears have dark fur. They live in wooded areas. Polar bears have white fur. They live in Arctic areas. How does the color of each bear help it survive?

• The color helps each type of bear blend into its environment.

• The color of each matches its food source so hunting is easier.

• The color absorbs the right amount of sun each needs for warmth.

• The color is a signal to the enemies of each to keep them from attacking.

Cacti survive in very dry weather. Which feature would help one cactus survive an unusually dry period while another cactus would not?

• shallower root system

• larger stems that store more water

• more branches to shade the root system

• sharper needles that pierce passing animals

What kind of plant would grow out of control?

• a predator species

• a native species

• an invasive species

• a scavenger species

With hot summers and mild winters, what kind of trees would you see in Florida?

• Pine trees

• Redwood trees

• Trees with colored leaves

• Trees with snow

Mona lives in Florida. Her daylilies started blooming in March. Josh lives in Pennsylvania. His daylilies started blooming in June. What did the daylilies adapt so that they can survive in both environments?

• habitat

• life cycle

• environment

• physical characteristics