Answer:
Explanation:
When the body senses foreign substances (called antigens), the immune system works to recognize the antigens and get rid of them. B lymphocytes are triggered to make antibodies (also called immunoglobulins). These proteins lock onto specific antigens.
Answer:
<em>1. </em><em>Lose weight:</em><em> In order to lose weight, expend more calories than they are consuming.</em>
<em>Gain weight:</em><em> In order to gain weight, one might need to intake more calories than they are expending.</em>
<em>2. Through the comparison between my calories consumed and expended throughout these last two days, may indicate that I may gain weight. My calories that I have consumed, far outnumber the calories expended. I however, do not think this comparison is accurate, because it leaves out a lot of my other physical activity. When I am waitressing at work, I am moving and going for three to four hours without sitting down. This is not included in the comparison because it is not daily labeled as “physical activity.” </em>
<em>3. As long as calories consumed and expended are not the same, diet or activity level should be adjusted for the good of the body's health.</em>
<em>4.??</em>
<em>5.??</em>
<em>6. Increasing your physical activity will make you hungrier. Choosing healthy foods will keep your fitness high. Physical activity burns calories and builds muscles making you healthier. </em>
<em />
Answer:
A. Filtering Blood to Remove Unwanted Waste
Explanation:
Excretory system is comprised of Kidneys, liver, lungs and skin.
<span>Organic foods tend to have higher levels of nutrients than nonorganic foods. The statement is False. Organic foods is also required to meet possible and same standards as that of non-organic foods. Since, organic is different from non-organic, then it has additional set of standards. In terms of product consistency, then organic foods are not into that.</span>
