Answer:
A.it helps to heal wounds and fights against diseases
B. it carries oxygen in blood and forms part of the hemoglobin
Explanation:
A. when you eat fruits like oranges,lime, pineapple pawpaw etc.and tomatoes,green vegetables,etc .
they give you healthy teeth and gums
B when u eat liver,egg yolk meat etc.
they prevents anaemia,loss of appetite
I Believe the answer is A. abnormal behavior can be thought of as a disease. Medical model presupposes the existence of illness or disease. It emphasizes clinical diagnosis and medical intervention in the treatment of disease or its symptoms. Under the medical model, health is defined as the absence of illness or disease.
Although the actual questions are missing from your ask, here's how you can tell.
If the study will be messed up (added bias) through interaction with the subjects the study should be observational. For example if a biologists wanted to study the eating habits of wild birds in the tropics, they would need to do an observational study. if they did a controlled experiment, the birds will change their eating habits based on human interaction, thus making the study invalid.
If the study requires specific measurements, close monitoring, or contact and interaction with the subjects the study should be a controlled experiment. For example, if a scientist wanted to test out a new drug, the health of patients would need to be closely monitored.
Think of it this way: the energy from that sunlight, plant and/or animal, is going into the predator's mouth.
