Which structure is a characteristic found only in angiosperms?

A. flower
B. leaf
C. megaphyll
D. seed
E. vascular tissue


Answer: A. flower

Biology & Microbiology

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The animal phylum with the most species is

(a) Mollusca. (b) Annelida. (c) Arthropoda. (d) Platyhelminthes.

Biology & Microbiology

The most common STD in the United States is

caused by

a. a protozoan. b. a bacterium. c. a fungus. d. a virus. e. unprotected sex.

Biology & Microbiology

At which one of the following days in the 28-day cycle is a woman MOST likely to get pregnant?

A) 1 (start of the menses) B) 7 C) 14 D) 21 E) 28

Biology & Microbiology

The ability to taste the compound sodium benzoate is controlled by the dominant allele 'B', while individuals homozygous for the recessive allele 'b' are unable to taste this compound. In a population of 1000 individuals, 100 are unable to taste sodium benzoate. Assume that this population is in Hardy-Weinberg equilibrium.

a. 0.250 b. 0.316 c. 0.432 d. 0.949

Biology & Microbiology