c. Deoxyribose:RNA I think that's right I hope it is I'm sorry if I got it wrong
Answer:
All cells are surrounded by a cell membrane. The cell membrane is semipermeable, allowing some substances to pass into the cell and blocking others.
Explanation:
Answer:
D.Both systems control movement
Explanation:
Skeletal protect the organs and hold up the body to move and the muscular system is for controlling movement.
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A confounding variable refers to an external effect, which modifies the influence of an independent and dependent variable. This extraneous effect is used to affect the outcome of an experimental design. The confounding variables can ruin the experiment and can generate unnecessary outcomes.
In the given case, confounding variables can be introduced by testing multiple hypotheses at a time and by using distinct kinds of soil in each of the samples.
