List the three variables that mainly determine peripheral resistance
What will be an ideal response?
The three variables that mainly determine peripheral resistance are 1 ) blood vessel radius, 2 ) blood viscosity, and 3 ) blood vessel length.
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The developmental period heralded by the onset of puberty is known as
A) post-infancy. B) adolescence. C) early childhood. D) teenage years. E) pre-teen.
What does the liver do to foreign substances that facilitates their secretion? a. It binds them to iron
b. It converts them to anionic forms. c. It converts them to cationic forms. d. It attaches water molecules. e. It changes their molecular spin.
How does the synthesis of proteins that are destined to be secreted differ from that of proteins with functions inside the cell?
A. Proteins destined to be secreted have a signal sequence. B. Proteins destined to be secreted are synthesized on free ribosomes. C. Proteins destined to be secreted are packaged into secretory vesicles in the granular endoplasmic reticulum. D. Only proteins destined for secretion need transfer RNA to be synthesized. E. Genes for proteins with functions inside the cell are located in the cytoplasm.
Which type of muscle tissue causes contraction of the heart?
A. skeletal muscle B. smooth muscle C. cardiac muscle