Energized myosin heads bind to actin only
when ____ is present.
a. ATP
b. ADP
c. calcium
d. phosphorus
e. sodium
C
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If you are going to go fishing in fresh water you most likely will use members of which phylum and
class as bait? A. Annelida: Oligochaeta B. Molluska: Gastropoda C. Oligochaeta: Nemertea D. Polychaeta: Oligochaeta E. Lumbricus: Terrestris
During the absolute refractory period, the axon membrane cannot transmit another action potential
____________________ Indicate whether the statement is true or false.
Hemoglobin is a(n) ____________________-containing protein in red blood cells
Fill in the blank(s) with correct word
One key reason why viruses are not considered living organisms is
viruses do not contain genetic information. viruses do not reproduce on their own. viruses are all smaller than the smallest known cells. viruses do not contain a nucleus. viruses can be frozen and still survive