Answer the following statements true (T) or false (F)
1. You would not expect a protein synthesis inhibitor to block learning processes in the relevant neurons of Aplysia or yourself.
2. Even single stimuli can activate protein kinase A in presynaptic neurons involved in the gill-withdrawal reflex in Aplysia.
3. New neurons do not appear in the brain of adult vertebrate animals.
4. Activities like playing a musical instrument regularly can affect the size of brain regions involved in performing these activities.
1. FALSE
2. TRUE
3. FALSE
4. TRUE
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A 4-year-old boy who is in day care 3 days per week is irritable and scratching the area around his anus. What morphologic characteristics would most likely be observed on microscopic ex-amination of the appropriate specimen?
a. Large eggs, proglottid shape b. Large eggs with a terminal spine c. Two individual hooklets d. Football-shaped eggs with one flattened side
Why was it important that the pea plants Mendel chose were true-breeding?
a. These plants were resistant to mutations that would have confounded his calculations. b. True-breeding plants meant that infertile samples did not affect trait inheritance probabilities. c. Because the plants were naturally self-fertilizing, traits from other plants could be excluded. d. Scientific journals at that time would only accept results from specific, verified species
The estimated world population in 2006 was almost:a
750 million. b. 1 billion. c. 3 billion. d. 5 billion. e. 7 billion.
Why is carbon monoxide deadly?
A) It binds to hemoglobin in white blood cells in place of oxygen. B) It binds to hemoglobin in red blood cells in place of oxygen. C) It binds to hemoglobin in red blood cells in place of carbon dioxide. D) It binds to hemoglobin in white blood cells in place of carbon dioxide.