I AM TAKING A QUIZ AND I NEED LOTS OF HELPDigestive tract is related to A) smooth
B) skeletal
C) cardiac

How can scientists test their ideas about the origin of the universe if they can't physically interact with or study?

Hybrid instruments that play sounds that are part sampled and part synthesized are known as:

Amino acids contain the elements carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur. of the 20 amino acids found in humans, 11 are called "nonessential" because they can be manufactured by the body when needed. which elements in these 11 amino acids are commonly obtained from the metabolism of sugar molecules?