Which of the following is produced directly by the stem apical meristem (SAM)?
A. protoderm
B. vascular cambium
C. cork
D. pith
E. bark
A. protoderm
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An acute infection and inflammation of the dermal layer of the skin is ________.
A. pharyngitis B. cellulitis C. scarlet fever D. erysipelas
In an atom, the electrons are
a. housed within the nucleus. b. moving through the nucleus. c. present in various energy shells. d. usually at rest, but occasionally move. e. positively charged.
Type II survivorship curves ____
a. are characteristic of humans and elephants b. indicate a fairly constant rate of death at all ages c. indicate a high mortality rate in the very young d. are characteristic of species in which most individuals live a relatively long life and die of old age e. are typical of species with high biotic potentials
In which of the following stages of the viral infectious cycle do enveloped viruses usually acquire their envelopes?
A. Penetration B. Release C. Assembly D. Component biosynthesis