________ is a measure of the randomness or disorder of a system.
A. Entropy
B. Free energy
C. Synergy
D. Enthalpy
Answer: A
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If you add together all the numbers of endangered or threatened animal species, it would be
__________ the number of endangered or threatened plants.
a. less than b. equal to c. more than d. This data has not been collected.
In California, a species of salamanders were geographically separated over time. The group that lived in southern California relied heavily on large gold blotches on their skin that helped to camouflage them from predators. The group that lived along the coast adopted a color pattern that mimicked a poisonous, colorful newt common to that area. Instead of being camouflaged, these salamanders advertised their colors. What type of selection process has occurred over time?
A. artificial selection B. natural selection C. theoretical selection D. experimental selection
Diabetics can be given the ________ insulin which binds to receptors on cells throughout the body increasing glucose uptake.
A. kinase B. hormone C. response element D. transcription factor E. G-protein
A microbiologist inoculates a flask of broth to a concentration of 100 bacterial cells per ml. The generation time of the species is 1 hour, and there is no lag phase. How long will it be before the culture contains more than 6,000 cells per ml?
A. 12 hours B. 6 hours C. 2 hours D. 4 hours E. 10 hours