1. True- because scientific theory means that <span>idea supported through research that attempts to explain existing observations or predict new ones.</span>2. False- because a cross-sectional means that its a study that is about different groups.
3. B-<span>An extraneous variable clarifies the relationship between the independent and dependent variables.</span>
The muscles surrounding the airways contract
Answer:
Here is my answer on Edg. "If someone is tested positive for STIs, they can take medicine which can cure some STIs, such as chlamydia and gonorrhea. You can also take medicine to help the symptoms although it can't be cured such as herpes."
Explanation:
Hope this helps. :)
