A disease characterized by hypoactivity of the thyroid with weight gain and a sluggish metabolism as a result of destruction of thyroglobulin best describes:
A.) Graves disease.
B.) myasthenia gravis.
C.) Hashimoto's thyroiditis.
D.) rheumatoid arthritis.
Ans: C.) Hashimoto's thyroiditis.
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Which of the following are incorrectly matched for a single-factor cross?
A. P generation / true breeding B. F1 generation / monohybrid C. F2 generation / result of F1 cross D. F1 generation / result of P cross E. F2 generation / result of P cross
What environmental factor can lactation periods be affected by?
a. Temperature of habitat b. Predator numbers c. Amount of other pinnipeds when lactating d. Available nutrients
The initial size of a population _____________ affect the carrying capacity of the environment
a. does not b. does
Which pair of animals is probably most closely related evolutionarily?
A) animals in the same phyla B) animals in the same genus C) animals in the same family D) animals in the same class