Systematic analysis now commonly includes ________ to identify, characterize, and determine relationships between new strains of bacterial species
A) whole genome analysis
B) microscopy
C) staining
D) pigments
Answer: A
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A scientist has been growing a bacterial strain for some time in culture media containing very few nutrients. The cells are growing slowly, so she enriches the media with amino acids and carbohydrates. To her dismay, instead of growing faster and to higher densities, the bacteria begin to die. What has caused this strange result?
A. a prophage switched from the lysogenic cycle to the lytic cyle B. a prophage switched from the lytic cycle to the lysogenic cycle C. the bacteria are infected with a temperate phage D. the bacteria are infected with a virulent phage, and has switched from the lysogenic cycle to the lytic cycle E. the bacteria are infected with a temperate phage, and has switched from the lysogenic cycle to the lytic cycle
As of 2008, human cloning was banned in the United States. What are the arguments for maintaining such a ban?
What will be an ideal response?
From an evolutionary perspective, behavior can be viewed best as:
a. not subject to the normal evolutionary process because it involves a neurological system. b. a trait that can satisfy the three conditions required for evolution by natural selection. c. something that is too complex to arise through natural selection. d. Both b) and c) are correct. e. All of the above are correct.
You exercised to the point that you were breathing heavily. Your heavy breathing was the result of ________ relaying information about the amount of O2 in your blood to the medulla, which ultimately resulted in your increased rate of breathing
A) mechanoreceptors B) electromagnetic receptors C) chemoreceptors D) thermoreceptors