Insulin-dependent diabetes mellitus is an example of an autoimmune disease that involves
A. sensitized T cells.
B. cytotoxic T cells.
C. antibodies.
D. IgD.
B
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Put the major stages of development in order
What will be an ideal response?
Protists are a diverse group of organisms. Which of the following is not characteristic of protists?
1.May be multicellular or unicellular. 2.May have DNA in a plasmid or in a nucleus. 3.May reproduce sexually or asexually. 4.May be autotrophs and/or heterotrophs.
Primary carnivores are
a. tertiary consumers in the second trophic level. b. secondary consumers in the third trophic level. c. secondary consumers in the second trophic level. d. tertiary consumers in the fourth trophic level. e. secondary consumers in the first trophic level.
The lungs are covered by a membrane called the
a) pericardium b) periosteum c) symphysis d) pleura