The organism responsible for destroying Ireland's potato crop in the mid-1800s, causing famine, is a member of the genus ________
a. Saprolegnia
b. Sargassum
c. Phytophthora
d. Porphyra
c
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Larval salamanders eat small insects and crustaceans. These insects and crustaceans are
herbivores. Thus, the salamanders are __________.
a. primary producers b. primary consumers c. secondary consumers d. tertiary consumers
Imagine that you have two people using breathing gear under water. Diver 1 is using an old style "rebreather" that removes carbon dioxide before the mixture is "rebreathed" and therefore decreases overall carbon dioxide concentrations in the blood. Diver 2 is using regular SCUBA gear and is breathing air with the normal amount of carbon dioxide that does not lower blood levels of carbon dioxide. Which diver would have a higher blood pH and which would feel more an "urge to breathe"?
A. There would be no difference in blood pH or breathing between the two divers. B. Diver 1 would have higher blood pH and would feel the "urge to breathe" sooner. C. Diver 1 would have higher blood pH, while Diver 2 would feel the "urge to breathe" sooner. D. Diver 2 would have higher blood pH, while Diver 1 would feel the "urge to breathe" sooner. E. Diver 2 would have higher blood pH and feel the "urge to breathe" sooner.
The lumen of capillaries is so small that red blood cells must travel through these blood vessels in single file or sometimes actually squeeze through
Indicate whether the statement is true or false
DNA profiling relies on an individual's ________, no two of which are the same between different people, except identical twins
A) unique set of genes B) unique mRNA sequences C) unique set of short tandem repeats within DNA D) unique fingerprints