The first documented human disease to be eradicated was smallpox

Indicate whether the statement is true or false


TRUE

Biology & Microbiology

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When an electron returns to its ground state, energy will be released as heat or an emission of light of a longer

wavelength known as: a. fluorescence. b. UV radiation. c. action spectrum. d. photoelectron hydrolysis. e. photoelectron degradation

Biology & Microbiology

Erection occurs when

A. nitric oxide is released. B. the spongy erectile tissue of the penis becomes engorged with blood. C. the arteries of the penis vasodilate. D. the veins flowing out of the penis vasoconstrict. E. All of these events occur to promote an erection.

Biology & Microbiology

Which of the following statements about common features of chordates is true?

a) The dorsal hollow nerve cord is part of the chordate central nervous system. b) In vertebrate fishes, the pharyngeal slits become the gills. c) Humans are not chordates because humans do not have a tail. d) Vertebrates do not have a notochord at any point in their development; instead, they have a vertebral column.

Biology & Microbiology

List the five types of white blood cells and their functions.

What will be an ideal response?

Biology & Microbiology