5. What are vertebrae?
A. small bones making up the backbone or spine
B. bones that the spinal cord runs through
C. bones that have joints allowing the spine to bend D. all of the above

The body is protected against harmful flu viruses by

Amylase is an enzyme found in the human digestive system. why do you think it was important to keep the enzyme temperature above 37 degrees celsius (98.6 degrees f)? describe what might happen if the temperature decreased by 10 degrees celsius.

Lola needs to sign 6 invitations. using stopwatch that measures time to tenths of a second, it takes lola 5.3 seconds to sign her full name. going by the accuracy of the stopwatch, which is the most accurate determination for the number of minutes lola needs to sign all 96 invitations