If an animal is a vertebrate, this means that the animal
A. does not have a backbone.
B. does not have true tissues.
C. has a backbone.
D. has a complete digestive tract.
E. does not have a complete digestive tract.
C. has a backbone.
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Hypoglycemia, or low levels of glucose in the blood of a healthy human, is "corrected" by a(n) _____
A) increase in the secretion of insulin B) increase in the secretion of glucagon C) increase in the secretion of both insulin and glucagon D) decrease in the secretion of both insulin and glucagon E) increase in the secretion of thyroid hormones
Which of the following are considered to be oncogenic?
A) Epstein-Barr virus and human papillomaviruses B) HIV and Ebola virus C) rubella and rubeola viruses D) variola and varicella viruses
Before nitrogenous wastes are excreted in
urine, they are converted first to ___ and then to ___.
a. urea--ammonia b. ammonia--urea c. glycogen--monosaccharides d. glycerin--fatty acids e. glyerin--urea
Which of the following groups are made up of
almost exclusively decomposers? a. Plantae b. Fungi c. Animalia d. Monera e. Protista