The basic unit of muscle contraction is known as the:a
sarcoplasmic reticulum.
b. transverse tubule.
c. sarcomere.
d. sarcolemma.
e. motor unit.
c
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The cephalopod mollusks have
A. a muscular foot. B. tentacles. C. two siphons. D. setae. E. jointed appendages.
Natural selection __________.
A. relies on variation among individuals in a population B. is independent of time or place C. and evolution cannot be directly observed D. is more of a creative process than an editing process
Eukaryotic chromosomes are a combination of proteins and DNA, which allows the cell to perform which four essential functions?
What will be an ideal response?
Regarding the class experiment on termite orientation behavior, the line for all of the treatment sheets was traced from the same template. Why was using a template important for this experiment?
A. We wanted to know if termites are drawn to this specific line B. It was previously demonstrated that termites respond to this specific line C. It helped ensure that each treatment trial was consistent D. The line was a prediction derived from our hypothesis