Which type of muscle is found in the lining of the arteries?
A smooth
B skeletal
C cardiac

What is the main fuel source for the work of the cell

The greenhouse effect a. something that has occurred for millions of years b. an unnatural phenomenon caused by humans that maintains earths temperature range. c. the results of the differences in the angle of the suns rays d. an unnatural phenomenon that causes heat energy to be radiated back into the atmosphere

The diagram shows a chicken embryo and a human embryo