All of the following are involved with chewing the cud EXCEPT
a. regurgitation of food.
b. increased breakdown of food.
c. exposure of new surfaces for rumen microbes.
d. incorporation of more oxygen into the food.
D
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An osmoconformer strategy is common to
A. birds. B. fishes. C. insects. D. marine invertebrates. E. mammals.
Which of the following descriptions applies to megaphylls?
A. can be found in both the pteridophytes and seed plants B. evolved around 370 MYA C. are broad leaves with branched veins D. allowed early plants to photosynthesize more efficiently E. All of the answer choices apply to megaphylls.
When a polypeptide is being assembled, the bond that forms between a newly added amino acid and the previous amino acid in the chain is a ________ bond.
A. hydrophobic B. phosphodiester C. peptide D. hydrogen E. terminal
Which of the following is the reason why the sub-Saharan population projections for the year 2025 have been scaled back from 1.33 billion to 1.05 billion people?
A. famine B. drought C. AIDS D. tuberculosis E. malaria