In clonal selection of B cells, which substance is responsible for determining which cells will eventually become cloned?

A) antigen
B) interferon
C) antibody
D) complement


A) antigen

Anatomy & Physiology

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Which type of epithelial tissue is found lining the heart, blood vessels and lymphatic vessels?

a) Simple squamous epithelium b) Simple cuboidal epithelium c) Stratified squamous epithelium d) Stratified cuboidal epithelium e) Simple columnar epithelium

Anatomy & Physiology

Fat-soluble vitamin overdoses primarily affect which organ?

A) heart B) brain C) skeletal muscles D) liver E) lungs

Anatomy & Physiology

Sympathetic stimulation of the heart

a. increases the heart rate. b. increases the contractile strength of the heart muscle. c. shifts the Frank-Starling curve to the left. d. two of these answers. e. all of these answers.

Anatomy & Physiology

Which of the following is the most abundant mineral in the body?

a) Na+ b) Calcium c) Magnesium d) Phosphate e) Iron

Anatomy & Physiology