Four of the five substances listed below are lipids
Select the exception.
a. triglyceride
b. wax
c. butter
d. hemoglobin
e. steroid
Answer: d
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In which of the following environments would you expect to find a high number of iron-reducing bacteria?
A) acidic mine drainage B) deep subsurface C) open ocean D) agriculture soil
What type of sensory receptors create the
action potential that we ultimately perceive as sound?
a. chemoreceptors b. mechanoreceptors c. proprioreceptors d. photoreceptors e. more than one of these
In an adult human stem cell that has a total of 48 chromosomes, how many chromatids are present at prophase of mitosis?
A) 12 B) 24 C) 48 D) 72 E) 96
Which of the following is true of viroids?
a. Viroids are typically extremely long and contain numerous genes. b. There are similarities between the base sequences of viroids and exons, resulting in the hypothesis that viroids evolved from exons. c. Viroid is the term for a virus that infects plants. d. Viroids are short pieces of naked RNA.