Answer:
(3) a single variable
Explanation:
A control experiment can be defined as an experiment in which a condition assumed to be a probable cause of the effect is being compared to the same situation by the scientist without involving or using the suspected condition.
Controlled variable refers to anything or quantity such as group, person, event, etc., that is held constant by the researcher during an experiment and as such is limited.
The first trial of a controlled experiment allows a scientist to isolate and test a single variable.
Generally, most scientific experiments usually have a control group so as to avail scientists (experimentalists) an ability to compare the outcome of their test results before testing a single variable. This control group is not given the treatment or influenced by the same single (independent) variable as the experimental group.
Therefore, this is the reason why science completely or totally rejects any hypothesis which is not supported by observations, as well as the results obtained from control experiments.
This ultimately implies that, for any hypothesis to be acceptable in science, it must be supported by observations and the results of control experiments; this give rise to factual informations, theories and by extension solutions to problems.
If sodium ions are outside of a cell, they will tend to move into the cell based on both their concentration gradient and the voltage across the membrane (the more negative charge on the inside of the membrane). So cells pump out the extra ions.
This is what my candidate teacher said..
All the organic compound differs from inorganic compound by carbon composition.
Answer: Option A
<u>Explanation:</u>
An organic compound is a compound which is composed of one carbon particles binded with different components. Most generally, these carbon molecules are clung to hydrogen, oxygen and nitrogen particles. On the other hand, an inorganic compound is not basically made out of carbon molecules.
There can be either carbon atoms present or missing. Thus it can be inferred that the presence and absence of carbon determines whether a compound is inorganic or organic.
1. large bonds means more stored energy
2. each triglyceride molecule is made up of one glycerol molecule
3. the bonds between carbon atoms
4. saturated fatty acid since in the sentenced followed after it includes the word saturated
A signaling pathway would need to be regulated because of efficiency, to make what you need when you need it.
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