As seen in this illustration, lines parallel to the equator designate longitude
1.True
2.False
2
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The large intestine concentrates undigested material by
A. squeezing excess salts and water from the undigested material via contraction of muscles in the intestine wall. B. absorption of salts and water across the epithelial surface of the lumen. C. ingestion of excess salts and water by intestinal bacteria. D. storing excess salts and water in the cecum. E. transporting excess salts and water back to the small intestine for absorption.
In the absence of retroviruses, eukaryotes may also undergo reverse transcription if which of the following is present?
A) Alu B) retrograde viruses C) retrotransposons D) prions E) none of the above
Which occupation would hold highest risk of glanders?
a. Rice farmer b. Medical doctor c. Veterinarian d. Sewer worker
In a population in Hardy-Weinberg equilibrium, the frequency of recessive alleles will ________ over time.
A) increase B) decrease C) remain the same D) increase and then decrease