A female aphid reproduces parthenogenetically to create a colony of 10 clones of herself. Five of these individuals become "soldiers" and do not reproduce; instead, they defend the other five reproductive individuals from predatory insects
Consider a single soldier and a
single reproductive female. From the soldier's perspective, each of that reproductive female's
offspring are genetically equivalent to the soldier's own:
A. siblings.
B. offspring.
C. nieces/nephews.
D. first cousins.
E. grandchildren.
B
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In the alveoli
A. oxygen diffuses into the blood while carbon dioxide diffuses out of the blood. B. oxygen diffuses out of the blood while carbon dioxide diffuses into the blood. C. both oxygen and carbon dioxide diffuse out of the blood. D. both oxygen and carbon dioxide diffuse into the blood. E. no exchange with the blood occurs.
The BACTEC automated blood culture system detects organisms by monitoring a rise in carbon dioxide (CO2) levels using which type of sensor?
a. Fluorescence b. Colorimetric c. Isotopic d. Saponin
A nerve whose fibers conduct impulses only away
from the central nervous system is a. exclusively motor. b. exclusively sensory. c. motor or sensory depending on body location. d. a spinal nerve. e. a cranial nerve.
__________ used x-ray diffraction to provide images of DNA
a. Watson and Crick b. Crick and Wilkins c. Franklin d. Franklin and Crick e. Watson and Wilkins