How does caffeine work?
A. interferes with or decreases the action of a neurotransmitter
B. promote the action of a neurotransmitter
C. increases the amount of neurotransmitter at a synapse
D. replace or mimic a neuromodulator
E. replace or mimic a neurotransmitter
Answer: A
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Photosynthesis occurs in many branches of the eukaryotic tree
A. true B. false
North Atlantic right whales, Eubalaena glacialis, were called "right whales" because they were the best whale for early whalers to kill. They have long baleen and lots of blubber and oil
When killed, they could be towed back to land for processing because they float. They once numbered in the millions, but the entire population of the species is now less than 400. The history of the right whale is an example of A) pollution. B) overexploitation. C) habitat destruction. D) competition.
Which of the following statements is true regarding Frederick Griffith's experiments?
a. He demonstrated that proteins serve at the genetic/hereditary material. b. He demonstrated that DNA serves as the genetic/hereditary material. c. He demonstrated that (only) dead virulent bacteria cause pneumonia in mice. d. His experiments relied on RNase and DNase to identify the genetic/hereditary material. e. None of the above
Starch is a long chain of sugars commonly found in foods such as corn, grain, potatoes, peas, and beans.
a. true b. false