Answer: The NEGATIVE CONTROl is the test tube that is filled with ONLY distilled water.
Explanation:
A negative control of an experiment is carried out alongside the main primary experiment except that the treatment is changed to something that is predicted to have no result. In the negative control, the student does not expect any response. This would help the student compare the result of a new experiment against an already known existing results.
Analysing the experiment carried out by the student, She filled two test tubes with distilled water and placed a piece of Elodea in one of the tubes, leaving the other without a plant. The other test tube that contains only distilled water is the negative control because she wasn't expecting any result from it. It's also served as a control sample to the primary experiment. This is observed as she blew in each tube to add carbon dioxide, which caused the distilled water to become more acidic. This would help the student know that the that experimental results are valid and to ensure that time is saved.
Explanation:
i can't see what u wrote can u please send a pic or something and like an example
You could talk about a Salamander.
Salamanders are anphibians just like frogs, and they have many of the same characteristics.
Hope I helped! Good Luck in this assignment! :)
The endocrine gland that primarily controls the body's normal temperature as well as having it set to a homeostatic set point of 37 degrees Celsius is the hypothalamus, specifically, the anterior hypothalamus which primarily functions as a thermoregulator.
Three different LTM kinds exist: Three types of memory exist: (1) semantic memory, which stores factual information, such as the distinction between afferent and efferent nerves; (2) episodic memory, which stores details of specific experiences.
Such as your first day of work; and (3) procedural memory, which stores instructions. While episodic memory is the recollection of specific facts, semantic memory is the recall of generic facts. The two categories of long-term memory are declarative memory and procedural memory. Declarative memory is the ability to recall events, facts, and data. The memory of how to perform things is referred to as procedural memory.
To learn more about semantic, click here.
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