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:
Enzyme-controlled reactions (digestion, synthesis, growth, regulation, reproduction, circulation, excretion)
Explanation:
Bias is when a scientist is inclined to put their own thoughts before their actual results. Therefore, an ethical scientist would not exhibit this trait.
Logic is when a scientist puts critical thinking and the scientific process first. An ethical scientist WOULD exhibit this trait.
Honesty is when a scientist tells the truth, wether or not their results align with their own thoughts/opinions. An ethical scientist WOULD exhibit this trait.
The answer to your question would be "An ethical scientist exhibits Logic and Honesty"
Ghrelin INCREASES APPETITE.
Ghrelin is an hormone which is majorly produced by the stomach. Other organs, which produces the hormone in small quantities include: the brain, the pancreas and the small intestines. The hormone has many functions, but its major function is to stimulate appetite, increase food intake and to promote fat storage.
