Which of the following helminths is known for moving out of the body through the anus, nose, or mouth?
A) Ascaris lumbricoides
B) Necator americanu
C) Schistosoma haematobium
D) Trichinella spiralis
E) Enterobius vermicularis
Answer: A
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Once a virus establishes lysogeny, it may not switch to the lytic cycle at some later time.
Answer the following statement true (T) or false (F)
Which of the following does not transmit the AIDS virus?
A. Vaginal secretions B. Semen C. Blood D. Mosquitoes
What is the ultimate source of a new allele in a gene pool?
a. natural selection b. mutation c. gene flow d. genetic drift
At locus a, the individual bearing these two homologous chromosomes is
a) homozygous for the dominant allele b) heterozygous for the dominant phenotype c) homozygous for the recessive allele d) heterozygous for the recessive allele e) homozygous for the dominant phenotype