Answer:
Theory can be formed.
Explanation:
Theory may be defined as the explanation of the natural world that can be tested by the scientific methods. Theories can be tested under the controlled experiments.
The scientific experiment has tested a drug and used in one group that getting the drug and other group that getting sugar pill. The group getting drug shows better result than other group, this can be formulated as theory.
<span>The answer is through the placenta. The placenta is formed in the uterus of the pregnant woman. Its role is in the nourishment of the fetus. The placenta provides the fetus with nutrients and removes waste. The umbilical cord connects the placenta to the fetus and it serves as the transporting passageway. </span>
Lack of sleep or too much sleep
major grade drop
failure to participate in school or habitual activities
The public health approach involves defining and measuring the problem, determining the cause or risk factors for the problem, determining how to prevent or ameliorate the problem, and implementing effective strategies on a larger scale and evaluating the impact.
