The Proteobacteria group contains:
A. bacteria species with similar rRNA
sequences.
B. anoxygenic photosynthetic bacteria.
C. E. coli and salmonella.
D. nitrogen-fixing bacteria.
E. All of these answer options are correct.
E
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_____ atoms give organic molecules their overall shape; _____ atoms determine the overall chemical behavior of organic molecules
A) Carbon; H, N, and O B) Hydrogen; C, N, and O C) Carbon; H2O D) H, N, and O; carbon
If, during protein starvation, the osmotic pressure on the venous side of capillary beds drops below the hydrostatic pressure, then _____
A) hemoglobin will not release oxygen B) fluids will tend to accumulate in tissues C) the pH of the interstitial fluids will increase D) most carbon dioxide will be bound to hemoglobin and carried away from tissues E) plasma proteins will escape through the endothelium of the capillaries
Select the correct meaning for the following pedigree symbol.
A) Unaffected male
B) Unaffected female
C) Mating
D) Affected male
E) Affected female
A plant species where each plant can only make either male or female flowers is called a ____ species
and always has ____ flowers.
a. monoecious; complete b. dioecious; imperfect c. dioecious; complete d. monoecious; imperfect e. monoecious; perfect