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solniwko [45]
3 years ago
7

Extract chemicals from marigolds, then expose one salamander the chemicals while exposing another salamander to water. Compare w

eight loss between the two salamanders. What is the flaw in this study
Biology
1 answer:
erica [24]3 years ago
4 0

Answer:

The sample size of the  animal  was too small , not large enough to conclude that the effects of the chemicals on Salamander was the actual cause of toxicity and  weight loss.

It is possible that  the drop in weight may be as a result of other environmental factors; agitation from background noise and  sudden exposure to new environments,, fluctuation in  temperature of the  surrounding environments , lack of  feed supply or others  

However, if there was many salamanders available; and most reacted to the chemical exposure in the same  way then it can be concluded that, toxicity of the chemical is  the causative factor.

Explanation:

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Scilla [17]

Answer:

Inhibitory influences from neuroglia, and the absence of growth-stimulating cues.

Explanation:

Neurogenesis in adults is limited by Inhibitory influences from neuroglia, mainly from oligodendrocytes, and the absence of growth-stimulating cues that are present during fetal development. It is so hard to repair a damaged nerve because nerve cell like other cells can't divide and increase in number, they can't renew themselves. Due to no division, the nerve cells does not increase in number and therefore can't repair themselves.

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3 years ago
Which of the following causes the most problems in countries with low economic growth?
Andreyy89
The answer is D) rapid population increase

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jolli1 [7]

Answer:

4th one is correct :)

More carbon dioxide gas would be found in Earth's atmosphere

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3 years ago
If time is one of the variables used in an experiment, the scientist usually decides at which time points he/she wants to take m
mrs_skeptik [129]

Answer:

The correct answer is - 1) independent 2) X.

Explanation:

independent variable is the variable or the factor that is altered or made constant or controlled to see or test the effect on the dependent variable in an experiment. Time is used in the experimental protocols in such a manner that it is considered as the independent variable.

In a graph, time is always plotted in the X-axis as independent variables are normally plotted horizontally in a graph.

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A swimming pool holds 2,640,000 quarts of water.<br><br> How many gallons does it hold?
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