Which of the following is a correct description
of a prokaryote shape?
a. A coccus is corkscrew shaped.
b. An archaean is arch shaped.
c. A bacillus is rod shaped.
d. A spirillum is shperical.
e. All of these are correct.
C
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The polar end of a phospholipid contains a phosphate group bound to ____, while the nonpolar end contains ____
a. alcohols or amino acids; two fatty-acid tails b. glycoproteins; one fatty-acid tail c. two fatty-acid tails; sterols
d. variable proteins; cholesterol e. water; choline
What does this figure indicate?
A) Species abundances have dramatically declined. B) Species richness has dramatically declined. C) Species have moved higher in elevation over time. D) Species have moved lower in elevation over time.
In the lab, you use a special balloon that is permeable to water but not sucrose to make an "artificial cell." The balloon is filled with a solution of 20% sucrose and 80% water and is immersed in a beaker containing a solution of 40% sucrose and 60%
water. Which of the following will occur? A) Water will leave the balloon. B) Water will enter the balloon. C) Sucrose will leave the balloon. D) Sucrose will enter the balloon.
The slow progression phase of an exercise program refers to the intensity and duration of workout that is maintained for life.
a. true b. false