__________ diseases are those abnormal conditions in which the body's defensive cells fail to make the self versus the nonself distinction correctly, and attack the body's own tissues.
A. Septic
B. Nondiscrete
C. Autoimmune
D. Cancerous
C. Autoimmune
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Secondary structure is characterized by which one of the following types of interactions?
A. hydrogen bonding within the peptide backbone B. a covalent bond between two cysteines C. ionic bonding between an acidic side chain and a basic side chain D. hydrogen bonding between side chains of amino acids E. the covalent bond between an amino nitrogen and a carboxyl carbon
Why do fungi produce fruiting bodies?
A. to enhance spore dispersal B. to provide food for animals C. to enhance photosynthesis D. to defend against predators E. to indicate territorial boundaries
Acidic urine can indicate ____
a. pregnancy b. intoxication c. toxins and drugs d. metabolic problems e. infection
The large single plant cell vacuole not only stores substances but also
What will be an ideal response?