There are ________ different described species of fungi.
A. 550
B. 74,000
C. 2,000
D. 4 million
Answer: B
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Results from the study of globin variants indicate that ____
a. all amino acid substitutions cause severe phenotypic effects b. a change in a single nucleotide is sufficient to cause a genetic disorder c. extended chains of phosphorus molecules function to carry oxygen d. all of the changes in globin are due to changes in amino acid sequences e. sickle cell anemia is not primarily an inherited disease
Which of the human organs is responsible for
breaking down ethanol and other toxins?
a. stomach b. liver c. small intestine d. pancreas e. spleen
The anterior and posterior pituitary glands differ in that ____
a. the anterior pituitary produces peptide hormones while the posterior pituitary produces steroid hormones b. the anterior pituitary produces its own hormones but the posterior pituitary does not c. the anterior pituitary is a part of the nervous system; the posterior pituitary is a part of the endocrine system d. the anterior pituitary is controlled by the hypothalamus whereas the posterior pituitary is controlled by the adrenal cortex e. the anterior pituitary is under voluntary control; the posterior pituitary is under involuntary control
In New York, when would the warmest days of the year usually occur?
A) around the summer solstice B) about one month after the summer solstice C) about one month before the summer solstice D) in mid-September