Answer: It is an amino acid that cannot be made by the body. It must be obtained from eating certain foods.
Explanation:
<span>When practicing birth control as natural family planning, it is not true that it is almost 100 percent effective. Birth control as natural family planning does require careful tracking of the menstrual cycle, demands focus on bodily changes, and does require women from having sex on days ovulating and following. Even if sex is is had outside ovulating days, it is possible to get pregnant, thus it is not 100 percent effective.</span>
Answer:
A
Explanation:
The restriction enzymes cut the isolated DNA into fragments
An independent variable is a variable which change is not affected by that of another variable. By process of elimination you can take out B and C. An independent variable can also change so that takes out A. That leaves D.
The correct answer is C) Wood burning. Hope this helps.