Which of the following animals use air sacs to ventilate its lungs?
a. humans
b. birds
c. frogs
d. reptiles
e. horses
B
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Oocytes are found in an ovary in
(a) seminiferous tubules. (b) follicles. (c) corpora lutea. (d) none of the above.
The wet mount and Gram stain of vaginal secretions from a patient who has bacterial vaginosis caused by Gardnerella vaginalis will reveal large:
a. squamous epithelial cells with numerous attached pleomorphic gram-variable or gram-negative coccobacilli and rods. b. numbers of large gram-positive rods. c. numbers of polymorphonuclear leuko-cytes. d. pleomorphic gram-negative rods with many leukocytes.
If the heritability of criminality is 0.55 in twin studies, what inference can be made about "nature versus nurture" for determining criminality?
a. Children of criminal have a 55% chance of becoming criminals b. Criminal is mainly due to differences in environmental conditions. c. Equal chances exist for any chiold to become a criminal if raised in that environment d. Fifty-five percent of the variability is due to differences in genotypes.
bile aids in the breakdown of which moecule
What will be an ideal response?