DIRECTIONS: Choose the letter of the answer choice that best answers the question.
1. Which of the following characteristics of Archaeopteryx is not shared by modern birds?
2. Which of the following characteristics do birds share with dinosaurs?
G. lack of teeth
H. presence of feathers
J. structure of the ankle joint
3. What is the function of the preen gland?
A. to produce digestive enzymes
B. to control salt balance in the body
C. to release scents that help attract mates
D. to produce an oily substance used to condition the feathers
4. Which bone supports the tail feathers?
INTERPRETING GRAPHICS: The graph below shows the effect of varying clutch size on the number of surviving offspring in one bird species. Use the graph to answer the question that follows.
Effect of Varying Clutch Size
5. Based on these data, which of the following statements is true for this species?
A. The optimal number of eggs in a clutch is seven.
B. The greater the clutch size is, the greater the number of surviving offspring.
C. Nests with five eggs produced the fewest number of surviving offspring.
D. More offspring died in nests containing eight eggs than in nests containing nine eggs.
DIRECTIONS: Complete the following analogy.
H. proventriculus J. anterior air sacs
INTERPRETING GRAPHICS: The diagram below shows the digestive system of a bird. Use the diagram to answer the question that follows.
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