The answer is A exercising excessively
I think its 3,2,4,1 or 4,1,3,2
A standard contains a known amount of a substance. If u are performing an experiment you will use a sample with a known concentration to create a standard curve (a straight line). Positive and negative controls are measured against the standard curve to show the expected results if the sample u will be testing is positive or negative.
Answer:
A food is likely to make people sick
Explanation:
There is a vaccine available to prevent infection of most strains of HPV (human papillomavirus), which is a group of viruses - the most common viral sexually transmitted infection. Certain types of HPV infection cause cervical cancers. The HPV vaccine protects against certain types of HPV that can lead to cancer or genital warts. The vaccine can be given to people ages 9 to 45 and it is given in a series of shots.
