The muscle pictured above would most likely be found where in the body?
A. attached to the skeleton
B. in the heart
C. in the walls of the blood vessels
D. in the intestines
E. in the lungs
A
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Chromatin consists of ____
a. only DNA b. DNA and RNA c. RNA only d. DNA and associated proteins e. proteins only in the nucleus
A technique that is used to artificially transform a bacterium is called electroporation. Electroporation:
a. exposes cells briefly to rapid pulses of electrical current. b. exposes cells to calcium ions. c. exposes cells to stomes. d. inserts the foreign DNA into the DNA in the chloroplast. e. inserts the foreign DNA into the plant's mitochondrial DNA.
Which of the photographs in the above figure
represents the bryophyte? a. moss b. fern c. conifer d. monocot e. all of these
The secretion of each of the hormones from the anterior pituitary requires ____
a. stimulation from the posterior pituitary b. that they first be secreted from the neurons of the hypothalamus c. one capillary bed d. positive feedback mechanisms e. the action of minute amounts of releasing hormones