Answer the following statements true (T) or false (F)
1. Overall brain size across mammals (e.g., an elephant vs. a bat) is a good predictor of behavioral complexity.
2. Cranial nerves are connected directly to the brain.
3. The somatic nervous system primarily regulates involuntary responses.
4. The sympathetic and parasympathetic divisions of the autonomic nervous system tend to have opposing actions on target organs.
5. A protein synthesis inhibitor would block learning in a human, but would have no effect in a simple invertebrate like Aplysia.
1. FALSE
2. TRUE
3. FALSE
The word somatic has its root in the Greek word for body (soma) and is associated with the voluntary control of body movements via skeletal muscles.
4. TRUE
5. FALSE
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Why aren't ferns commonly found in deserts?
A. Fern fronds are sensitive to UV light. B. Fern spores are unable to resist prolonged dry conditions. C. Ferns are non-vascular and cannot absorb water from deep within the soil. D. Fern pollen is spread by insects that do not occur in deserts.
Exposure to UV light from the sun or tanning beds causes
A) depurination. B) deamination. C) alkylation. D) thymine dimers. E) oxidation.
A change in a population that is related strictly to its size is best described as ____
a. density-dependent b. density-independent c. biotic d. logistic e. exponential
In transcription,
a. several RNA molecules are made from the same DNA molecule. b. a promoter sequence is needed. c. DNA produces messenger RNA. d. a specific enzyme called RNA polymerase is required. e. all of these occur.