In ionic bonding,
A. the charge of the ion does not play a role in the bond.
B. a "sea of electrons" forms.
C. only non-polar molecules are involved.
D. two hydrogen atoms share one pair of electrons.
E. electrons are transferred from one atom to another.
Answer: E
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You are training for a marathon. As you increase your level of physical fitness, you've noticed that the time spent recovering (breathing heavily after stopping running) is decreasing. What change to your muscle cells might account for this?A) Increase in actin concentrationB) Increase in muscle size (hypertrophy)C) Increase in myoglobin concentrationD) Increase in creatine concentrationE) Increase in myosin concentration
What will be an ideal response?
You are singing a song at karaoke and reach a part that requires a louder, more intense sound. To increase your voice's volume, you
A. change the size of the laryngeal cartilages. B. change the shape of the laryngeal cartilages. C. change the force of the air passing over the vocal cords. D. increase the tension on your vocal cords.
Since insulin released from the pancreas is carried in the bloodstream to distant target cells, like muscle cells, it is considered to be a(n)
a) local hormone. b) circulating hormone. c) paracrine. d) autocrine. e) neurotransmitter.
Freshly voided urine has very little smell, but shortly after voiding it can give off a very strong smell. Why?
What will be an ideal response?