Cardiac output depends on which of the following? Select all correct choices
A. heart rate
B. the amount of adrenaline in the blood
C. stroke volume
D. the amount of blood entering the heart
A,B,C,D
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The lipopolysaccharide (LPS) layer is found ONLY in the cell walls of
A) gram-positive Bacteria. B) gram-negative Bacteria. C) Archaea. D) Eukarya.
The main danger from deep vein thrombosis is ____
a. a clot breaking loose and moving elsewhere in the body b. unsightly veins c. loss of blood flow in the extremities d. blood pooling below the heart e. a clot dispersing without warning
The usual F2 phenotypic ratio of a dihybrid cross is
a. 1:1. b. 2:1. c. 9:3:3:1. d. 1:2:1. e. 3:1.
In nature, genes with the potential to produce serious defects are acted against and kept at a low
frequency by: a. neutral variations. b. stabilizing selection. c. disruptive selection. d. frequency dependent selection. e. natural selection.