Which of the following indicators of global
warming has (have) occurred?
a. increase in the temperature of the lower
atmosphere
b. rise in sea level
c. global surface temperatures are increasing
at a faster rate
d. melting of glaciers
e. all of these
E
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The difference between latex agglutination and coagglutination is:
a. the type of particle used to carry the anti-body. b. the type of target organism involved. c. that coagglutination is less specific but more sensitive. d. that coagglutination, not latex agglutina-tion, can be used for direct antigen detec-tion.
Crown gall is caused by a prokaryote plasmid that can be expressed in plant cells
Indicate whether this statement is true or false.
When a neuron is not being stimulated, its
membrane potential is classified as
a. resting potential. b. threshold potential. c. action potential. d. inactive potential. e. inhibitory potential
Which physical feature makes it possible for amniotes to be completely terrestrial?
a. their skin b. their lungs c. their eggs d. their four limbs e. their brains