The virus structure indicated by the arrow labeled C is the
A. the bacteriophage.
B. genetic material, DNA or RNA.
C. the protein coat, or capsid.
D. the bacterial membrane.
E. the lipid-rich envelope.
E. the lipid-rich envelope.
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Describe how FISH can be used to determine which cells within a microbial community are actively degrading toluene. Assume the genes involved in the metabolic pathway have been sequenced from several microorganisms and vary only slightly from one another
What will be an ideal response?
Which of these differences in phenotypes could create a prezygotic barrier?
a. dogs too small to carry their offspring to term b. birds with long beaks instead of short beaks c. a whale that sings at decibels of 52Hertz (Hz) instead of 40Hz d. a goat with red hair instead of black hair
Which of the following is an accessory system of vessels and organs that helps balance the fluid
content of the blood and surrounding tissues?
a. Circulatory system. b. Non-circulatory system. c. Accessory vessel system. d. Lymphatic system. e. Heart.
According to the figure, what is occurring during day 2?
A. ovulation
B. release of corpus luteum
C. menstruation
D. luteal regression
E. copulation