The conscious awareness of a stimulus is ____
a. threshold
b. sensation
c. transduction
d. perception
e. action potential
ANSWER: b
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Of the 23 pairs of human chromosomes, 22 pairs are homologous and are found in both males and females. These are called ________.
A. bivalents B. autosomes C. recombinant chromosomes D. somatic chromosomes
Which bacterium contains a large Ti plasmid and causes crown gall disease in plants?
A) Agrobacterium rhizogenes B) Agrobacterium tumefaciens C) Aliivibrio fischeri D) Butyrivibrio fibrisolvens
The ____ of a bird's digestive system contains sand and rocks to aid in mechanical digestion
a. crop b. esophagus c. gizzard d. intestine e. mouth
Which molecules pick up and transfer H+ to the electron transport chain?
a. ATP b. oxygen c. phosphate d. acetyl-CoA e. NAD and FAD