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Evolution

Test Description: Evolution Test

Instructions: Answer all questions to get your test result.

1) Over a long period, species ' limbs shrink. Eventually , a new species is formed that travels entirely on its belly . Scientist would consider this an example of ?

Ab. evolution Bc. migration Ca. mutation Dd. natural selection

2) Which of the following is NOT an example of natural selection?

Aa. Shrubs growing longer thorns over many generations Bc. Insects developing pesticide resistanc Cb. Male birds developing extremely colorful displays of feathers Dd. Dog owners breeding their pets to produce friendlier offspring

3) Which of the following does not contain an example of an adaptation?

Ac. All birds have beaks Bb. A turtle hides in the shell when threatened Ca. A red eyed tree frog's green skin provides camouflague Dd. A giraffe's long neck helps it reach food

4) How does natural selection lead to evolution?

Aa. Stronger offspring kill weaker members of the species Bb. Helpful traits accumulate among surviving members of the species Cc. Overproduction provides food from stronger members of the species Dd. Environmental changes kill weaker members of the species

5) If a population of organisms is unable to adapt to change in the ecosystem , what will most likely happen?

Ad. A new species will form Bc. The population will go extinct Ca. Their DNA will mutate to a new form Db. The individuals will evolve

6) Which of the following factors has the greatest effect on whether the new fur color will become more common in the mouse population?

AWhether abundant food is available in the mouse habitat BWhether the new coat color gene is dominant or recessive CWhether the new fur color gene will increase the survival of mice and their offspring DWhether the rate of reproduction in the mouse population stays the same

7) What process would farmers use to produce vegetable that will grow in a specific climate?a

Ad. genetic variation Bc. evolution Ca. natural selection Db. selective breeding

8) Which of the following best describes the relationship between variations and adaptations?

Ab. All adaptations are variations and all variations help organisms survive Bd. Adaptations result from variations only if they help an organism survive Ca. All variations are adaptations , but not all adaptations come from variations Dc. Variations result from adaptations organisms make to the environment

9) Which of the following factors is necessary in order for natural selection to occur in a species ?

Ad. a strong family Bc. a hospital environment Cb. an abundance of food resources Da. genetic variation with in a population

10) On the Galápagos Islands, finches adapted over time to different food sources through changes in their beak structure. Which of the following most likely resulted from the finches’ beak structure adaptations? (14a) (Level 2)

Ab. An increase in the competition among finches Bd. An increase in the number of different species of finches. Cc. A decrease in the reproductive rate in finches. Da. A decrease in predation on finches.

11) A group of plant eating animals are separated from their population . In new environment , the only edible vegetation grows at the top of tall trees. Which of the following variations would be most useful adaptation to members in the group?

Ab. a long neck that can access available food Bd. larger ears and eyes located on sides of head to detect predators Cc. specialized digestive systems for the vegetarian diet Da. wide flat teeth adapted to grinding plant material

*select an answer for all questions

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