Plague is a quarantinable disease.
Answer the following statement true (T) or false (F)
True
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Animals breathe in air containing oxygen and breathe out air with less oxygen. The consumed oxygen is used:
A. in the Krebs cycle. B. in the glycolysis pathway. C. in the conversion of pyruvate to acetyl Co- A. D. in photosynthesis. E. as an electron acceptor in the respiratory electron transport chain.
Alleles conferring red plumage to male cardinals are common because red plumage
A. is helpful in attracting prey. B. makes males less susceptible to predation. C. is an example of genetic drift. D. is preferred by female cardinals in choosing a mate. E. allows male cardinals to easily identify each other.
What mineral is responsible for more functions than any other mineral, including being a component of nucleic acids?
a. calcium b. magnesium c. phosphorus d. sodium e. iron
Which molecule is responsible for separating double-stranded DNA into single strands?
A. DNA primase B. DNA ligase C. DNA helicase D. single-stranded binding proteins E. topoisomerase