The peripheral nervous system ____
a. carries signals to and from the central nervous system
b. is composed of the brain and spinal cord
c. is composed of clusters of neuron cell bodies
d. includes sensory neurons only
e. is present in radial invertebrates
ANSWER: a
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An accurate and comprehensive description of pseudogenes must include
_____ Pseudogenes may have some gene-like features such as a promoter and splice sites. _____ Pseudogenes encode proteins, but the translated proteins are non-functional. _____ Pseudogenes can provide insight into the evolutionary history of the related functional gene. _____ Every pseudogene has a similar DNA sequence to some functional gene. _____ All pseudogene pretent to transcribe other genes when they only transcribe one type of genetic information.
The most important function of nitrites in processed foods is to
A. prevent browning. B. inhibit the germination of Clostridium botulinum endospores. C. prevent carcinogen formation. D. make the food more acidic.
Cells that actively divide during germination are
called __________ cells. a. parenchyma b. meristematic c. ground d. epidermal e. mesophyll
Giardia's mitosome can be said to be "doubly degenerate," because it is a degenerate type of ________, an organelle that is itself a degenerate form of ________
A) nucleus; archaean B) nucleus; bacterium C) mitochondria; proteobacterium D) mitochondria; spirochete