Evolution Question Preview (ID: 45364)


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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)
a) a. A decrease in predation on finches.
b) b. An increase in the competition among finches
c) c. A decrease in the reproductive rate in finches.
d) d. An increase in the number of different species of finches.

Which of the following factors is necessary in order for natural selection to occur in a species ?
a) a. genetic variation with in a population
b) b. an abundance of food resources
c) c. a hospital environment
d) d. a strong family

What process would farmers use to produce vegetable that will grow in a specific climate?a
a) a. natural selection
b) b. selective breeding
c) c. evolution
d) d. genetic variation

Which of the following best describes the relationship between variations and adaptations?
a) a. All variations are adaptations , but not all adaptations come from variations
b) b. All adaptations are variations and all variations help organisms survive
c) c. Variations result from adaptations organisms make to the environment
d) d. Adaptations result from variations only if they help an organism survive

Which of the following factors has the greatest effect on whether the new fur color will become more common in the mouse population?
a) Whether the new fur color gene will increase the survival of mice and their offspring
b) Whether the new coat color gene is dominant or recessive
c) Whether the rate of reproduction in the mouse population stays the same
d) Whether abundant food is available in the mouse habitat

If a population of organisms is unable to adapt to change in the ecosystem , what will most likely happen?
a) a. Their DNA will mutate to a new form
b) b. The individuals will evolve
c) c. The population will go extinct
d) d. A new species will form

How does natural selection lead to evolution?
a) a. Stronger offspring kill weaker members of the species
b) b. Helpful traits accumulate among surviving members of the species
c) c. Overproduction provides food from stronger members of the species
d) d. Environmental changes kill weaker members of the species

Which of the following does not contain an example of an adaptation?
a) a. A red eyed tree frog's green skin provides camouflague
b) b. A turtle hides in the shell when threatened
c) c. All birds have beaks
d) d. A giraffe's long neck helps it reach food

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 ?
a) a. mutation
b) b. evolution
c) c. migration
d) d. natural selection

Which of the following is NOT an example of natural selection?
a) a. Shrubs growing longer thorns over many generations
b) b. Male birds developing extremely colorful displays of feathers
c) c. Insects developing pesticide resistanc
d) d. Dog owners breeding their pets to produce friendlier offspring

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?
a) a. wide flat teeth adapted to grinding plant material
b) b. a long neck that can access available food
c) c. specialized digestive systems for the vegetarian diet
d) d. larger ears and eyes located on sides of head to detect predators

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