Which of the following is NOT one of the important properties of the immune system that results from the action of B and T cells?

A) self-tolerance
B) redundancy
C) diversity
D) memory
E) specificity


Ans: B) redundancy

Biology & Microbiology

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The portion of the nervous system that is responsible for both increasing heart rate and increasing movement of the

intestines is the ____.

a. peripheral nervous system b. sympathetic nervous system c. parasympathetic nervous system d. somatic nervous system e. interaction between the somatic and autonomic nervous systems

Biology & Microbiology

Monocot roots have centrally located ground tissue called pith, surrounded by a ring of xylem and phloem bundles.

Answer the following statement true (T) or false (F)

Biology & Microbiology

Which of the following is known as "false morel" and causes bloody diarrhea, convulsions, and death within two days?

A) Amanita phalloides B) Aspergillus C) Gyromitra esculenta D) Sporothrix schenckii E) Mucor

Biology & Microbiology

When two atoms share a pair of electrons, the bonding is referred to as:

A. ionic. B. unstable. C. covalent. D. hydrogen.

Biology & Microbiology