Which species is an invasive species?
A) pika in the western United States
B) brown tree snake in Guam
C) polar bear in Norway
D) brown pelican off the coast of Louisiana
Answer: B
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Which of the following is true concerning the dodo bird?
a. The greatest effect by humans on the dodo bird was because Dutch sailors ate them b. The dodo bird went extinct in the twentieth century due to industrial pollution. c. Humans were not involved in their fate. d. Destruction of nests and habitat by animals that accompanied the sailors caused the greatest effect on dodo bird populations.
The function of the structure labeled 9 is
a. food intake. b. digestion. c. sexual reproduction . d. water discharge. e. asexual reproduction.
Which of the following is/are required with actin and myosin in order to initiate muscle contraction?
A. Calcium and phosphate B. Calcium and ATP C. ATP D. Phosphate E. Calcium
Blood flows most slowly through the _______.
a) aorta b) veins c) arteries d) heart e) capillaries