Radially symmetrical animals have loose meshes of neurons that are called
a. nerve nets.
b. brain nets.
c. ganglia nets.
d. nerve cords.
e. cephalization nets.
A
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Organisms belonging to the genus Legionella are:
a. gram-positive diplococci. b. gram-positive diphtheroid bacilli. c. gram-negative coccobacilli. d. faintly staining, thin gram-negative bacilli.
What is one current limitation of whole-genome sequencing for personalized cancer treatment?
A) The human genome is too large to be sequenced for individual patients. B) Drugs may not exist to target the mutant genes that are identified. C) Whole-genome sequencing reveals only mutations in coding sequences, and regulatory mutations may also be important. D) The genomes of cells with abnormal karyotypes, such as cancer cells, cannot be sequenced reliably.
Researchers can deliver genes into plants by using ____.
A. PCR B. DNA sequencing C. electric or chemical shocks D. gel electrophoresis E. DNA segmentation
The largest membrane of the body, the ____________ provides a protective barrier from environmental factors such as chemicals, water, microbes, and mechanical trauma.
Fill in the blank(s) with correct word