Carbs-Monosaccharide, Lipid-Triglycerides, Protein-Amino Acids, Nucleic Acids-Nucleotides!
Answer:
Doctors screen people for chlamydia and gonorrhea by taking a urine test or a swab inside the penis in men or from the cervix in women. The sample is then analyzed in a lab. Screening is important, because if you don't have signs or symptoms, you may not know that you have either infection
Explanation:
I think it is A. C does not make sence to me. D is wrong because it takes years for these things to happen. Same for B. It would only take hours to dig a trench. I am going With A.
One type of atom, such as hydrogen is called an element. An element is a pure substance, made up of only one type of atom. You can find the elements on the periodic table of elements, where they are listed.
