3 years ago

What is the importance of manipulation and control in the experimental method?

1 answer:

6 0

This is an experiment where the researcher manipulates one variable, and control/randomizes the rest of the variables. It has a control group, the subjects have been randomly assigned between the groups, and the researcher only tests one effect at a time.

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Mature human sperm and eggs are similar in that

Dafna11 [192]

They are similar due to the fact that they have half the number of chromosomes (23) or they are haploid gametes.

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What term describes a species that is brought into an ecosystem where it does not naturally occur? competitor species threatened

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Answer:

convergent evolution.

Explanation:

When organisms of distantly related species or groups are found in similar environmental conditions, they develop some similar features which are otherwise not present in their ancestral species. This is called convergent evolution. Convergent evolution also results in the development of similar traits in the distantly related organisms that are found in distantly located geographical regions having similar environmental conditions. Therefore, the presence of the same features in rodents and flying squirrels represent convergent evolution.

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True or faulse organic fat will not dissolve in water

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False. It can and will dissolve in water.

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