<span>The independent variable is the part of the experiment that the researcher makes changes or adjustments to. This allows for differences in the dependent variable, which is usually the result that the independent variable is considered to (in)directly work on.</span>
Answer:
A. All of the offspring plants will have purple stems.
Explanation:
All of the offspring plants will have purple stems because both the parents have the same stem color i. e. purple so if they mate with each other , the offspring produce have the same color of stem. Both parents plants are heterozygous which means that they are different from one another in some characteristics but also some similarities such as stem color etc. So all the offspring produce have purple-stemmed.
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Before viruses can reproduce, they must infect a host cell.
Viruses need a way to enter the body before they can infect a host cell.
Answer:
Acute inflammation of the mucous membrane of the nose, with the discharge of mucus; a head cold.
Explanation: