To be certain the botulinum toxin is inactivated, the source must be heated for at least 2 minutes at 100 °C
Indicate whether the statement is true or false.
Answer: FALSE
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Inhibitory neurotransmitters cause hyperpolarization of the postsynaptic cell.
a. true b. false
Two closely related insect species are active at different times of day, with one diurnal and the other nocturnal. This is an example of spatial isolation
Indicate whether the statement is true or false
What can happen to the carbon dioxide in the atmosphere?
A) It can be released into space from the atmosphere. B) It can be converted to glucose by plants. C) It can be converted into carbon monoxide by the oceans. D) It can react with nitrogen to form fossil fuels.
Which of the following is NOT a function of the spinal cord?
a. It interprets the sensory nerve action potentials as sensations. b. It carries motor nerve action potentials from the brain to the effectors. c. It carries sensory nerve action potentials from the sensory receptors to the brain. d. It serves as a reflex center.