A mineral is considered to be a trace mineral if a normal person requires how much in their diet per day?

A) <1mg
B) <1 microgram
C) <100 mg
D) >100 mg


D) >100 mg

Biology & Microbiology

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The method of grouping organisms that are most closely related to each other, and the ancestors they were derived from, is referred to as which of the following?

a. cladistics b. phylogenetics c. taxonomy d. molecular systematics

Biology & Microbiology

Which of the following represents the lowest degree of certainty?

a. hypothesis b. conclusion c. fact d. principle e. theory

Biology & Microbiology

The Haldane effect describes the increase in the affinity of hemoglobin for CO2 in the presence of a lowered

A) pH. B) PCO2. C) concentration of bicarbonate (HCO3-). D) temperature. E) PO2.

Biology & Microbiology

The vas deferens ducts empty sperm into the:

A) urethra. B) seminal vesicles. C) epididymis. D) uterus.

Biology & Microbiology