<em>A control is that group in an experiment that does not receive any treatment and is used for comparison with the test result.</em>
<u>Answer:</u> <em>A) a control</em>
<u>Explanation:</u>
In the experiment mentioned, the control is missing because the test group as mentioned are the plant set that receives the treatment that is the different concentration of nitrate and phosphate.
The effect of these nutrients on growth will be observed and evaluated. The time period of the experiment is one month which might exceed.
Answer:
The rectus abdominis muscle is the muscle that is located at the front of the abdomen; it is most often referred to as the ''abs.'' The action of this muscle pulls the rib cage and the pelvic bone towards the middle of the abdomen, just like the movement when a person performs a sit-up or crunch.
Explanation:
Answer:
Explanation:
A correlation between two variables does not imply causation. On the other hand, if there is a causal relationship between two variables, they must be correlated.
Answer:
Within a protein, multiple amino acids are linked together by peptide bonds, thereby forming a long chain.
Explanation:
Peptide bonds are formed by a biochemical reaction that extracts a water molecule as it joins the amino group of one amino acid to the carboxyl group of a neighboring amino acid.
