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4. Starlings produce an average of five eggs in each clutch. If there are more than five, the parents cannot properly feed the young. If there are fewer than five, predators may destroy the entire clutch. This is an example of
a Disruptive Selection
b Directional Selection
c Stabilizing Selection
d None of the above
5. The occurrence of large or small beak sizes among seed crackers in the absence of medium-sized beaks is an example of
a Disruptive Selection
b Directional Selection
c Stabilizing Selection
d None of the above
6. A scientist measures the circumference of acorns in a population of oak trees and discovers that the most common circumference is 2 cm. What would you expect the most common circumference(s) to be after 10 generations of stabilizing selection?
a 2 cm
b greater than 2 cm or less than 2 cm
c greater than 2 cm and less than 2 cm
d can't tell from the information given
7. Refer to question 6, but this time answer what you would expect after 10 generations of disruptive selection.
a 2 cm
b greater than 2 cm or less than 2 cm
c greater than 2 cm and less than 2 cm
d can't tell from the information given
8. Refer to question 6, but this time answer what you would expect after 10 generations of directional selection.
a 2 cm
b greater than 2 cm or less than 2 cm
c greater than 2 cm and less than 2 cm
d can't tell from the information given
9. What types of individuals in a population are represented by the two ends of a bell curve?
a extreme phenotypes of a species
b intermediate phenotypes of a species
c identical phenotypes of a species
d None of the above
10. If a cow develops a preference for eating white flowers and ignoring pink and red flowers. What type of selection is being demonstrated, and which graph best represents this type of selection?
a Disruptive Selection
b Stabilizing Selection
c Directional Selection
d None of the above apply
Answers: 1
Biology, 22.06.2019 04:30, kaciewelkerouwdfa
Plz fast biotechnology is a growing field of applied biology. many crops such as corn have been engineered to be resistant to herbicides. therefore farmers can spray these chemicals to kill weeds growing near the crop without worries of killing the crop itself how does this type of biotechnology work? a. by changing the genetic make up of the crops. b. by causing the crops to kill the weeds. c. by changing the type of crops used. d. by changing the location of the crops.
Answers: 1
Biology, 22.06.2019 11:20, maddiecrouch21
Drag each label to the correct location on the chart. match the function to the type of tissue
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