B, proton is positive and it does not represent the symbol
Nucleic acids is what it would be known as
First, he should measure how long it takes for the liquid to become clear if X and Y are mixed together. Then, he should measure how long it takes if he also adds substance A to X and Y. He will find out if substance A is a catalyst. hope this helps :)
Answer:
They all have same basuc cepl structure , which consists of cytoplasm , nucleus , !nd outer membrane
<span>Light rays passing through glass is a process called radiation. This is a term used in physics meaning the transmission or emission of energy via particles or waves through a medium or through space. In this scenario the light rays are the energy traveling through the glass, a medium.</span>