LPS is found in the outer membrane of Gram-__________ cells.
Fill in the blank(s) with the appropriate word(s).
negative
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The boreal forests of North America are dominated
by a. spruce, fir, and pine. b. redwoods and sequoia. c. birch and aspen. d. long-leaf and loblolly pines. e. cedars and junipers.
Which of the following statements concerning the development of a coelom is FALSE?
a. It requires animals to have either two or three tissue layers. b. It requires the endoderm to be covered by mesoderm. c. It occurs in protostomes and deuterostomes. d. It may occur by schizocoely. e. It is a fluid-filled cavity.
A species has n=4 chromosomes. Genes on the same chromosome have a maximum recombination recombination rate of:
a. 100% b. 75% c. 50% d. 25% e. 0%
A neuron can relay a more intense signal by ________
A) sending a stronger action potential B) sending more action potentials in a given amount of time C) sending an action potential that travels more quickly D) sending a longer action potential