The weather condition that occurs when a layer of cool air is trapped under a layer of warmer air is a
A) temperature decrease.
B) temperature inversion.
C) cold front.
D) warm front.
B
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Which of the following describes an activated dendritic cell upon arriving in a lymph node?
a. located in follicles and medulla of the lymph node b. associated mainly with antigen uptake and processing c. bears highly elaborated finger-like processes called dendrites d. expresses low levels of MHC class II molecules e. carries out apoptosis of lymphocytes.
Excessive intake of vitamin A and beta-carotene can be detrimental to health
Indicate whether this statement is true or false.
Which term means new opening in the colon? ?
A) Tracheostomy B) Colostomy C) Colotomy D) Tracheotomy
What is the defining characteristic of neurorrhaphy?
A) severe inflammation of the nerves B) transient nerve pain C) suturing together the ends of a severed nerve D) traumatic nerve damage