Answer:
D I think the answer is D for this question
Answer:
D
the waves are actually being blocked
<span>The box with no lightbulb is the control group.
The others are treatments. The purpose of a control group is used to increase the validity of the experiment by testing
the independent variable to check that it
does not influence the results. </span>
<h3><u>Answer</u>;</h3>
D. All polysaccharides are made up of carbon, hydrogen, and oxygen.
<h3><u>Explanation</u>;</h3>
- A polysaccharide is a large molecule made of many monomers called monosaccharides such as glucose, galactose, fructose, etc.
- Polysaccharides can be homopolysaccharides, where all monosaccharides are the same or heteropolysaccharide in which the monosaccharides vary.
- They may be linear, where a molecule of polysaccharides has straight chain of monosaccharides, or branched polysaccharides in which a chain has arms.
- <em><u>All polysaccharides contain oxygen, hydrogen and carbon atoms like all the carbohydrates.</u></em>
