Answer:
in controlled experiment an independent variable is systematically manupulated and dependent variable is measured ; any extraneous variables are controlled
Answer:
which best describes the main role of adenosine triphosphate (ATP)? It's purine derivative created from the breakdown of fuel molecules, that transfers energy for cellular processes. ... They are polymers of subunits containing a phosphate group, a sugar, and a purine or pyrimidine base.
Explanation:
some symptoms of a heart attack could be heavy sweating, crushing chest pain radiating both arms, shortness of breath, difficulty breathing, weakness, and nausea. Some risk factors of a heart attack could be genetics, gender, age, and race.
here hab a cookie ~
Swimming is a great way to work out because it helps with the muscles in your arms and legs
