The answer is abc because they are the first letters of the alphabet
Answer:
A weakened immune system, increasing the risk of illness and infection
Nausea and abdominal pain, which can also lead to changes in appetite and weight loss
Seizures, stroke, mental confusion and brain damage
Lung disease
Problems with memory, attention and decision-making, which make daily living more difficult
Explanation:
<span>The correct answer is C. A. would require a drastic sudden change which would only damage the body as it wouldn't be immediately used to it, as well as it wouldn't gain enough nutrients from which to gather energy for exercising; B. is an unhealthily wrong choice, because exercise is efficient, but diet influences at least 80% of the weight results; C. is the most balanced choice.</span>
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>
