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When was a control used in the investigation of the amphipods and sea butterflies Why was a control necessary?

A control was used in the investigation of amphipods and sea butterflies to provide a baseline for comparison. By having a control group of organisms that were not exposed to the same conditions as the experimental group, researchers were able to measure the effects of the specific variables being tested. This helps to determine if changes observed in the experimental group were due to the variables being studied or other factors.


What was the control of the investigation?

The control of an experiment is one in which the independent variable is not manipulated. It is used as a comparison for all other aspects in the experiment.


Does butterflies need an apostrophe?

As a plural noun, butterflies does not need an apostrophe. Apostrophes are not used to make nouns plural.As a possessive noun, butterflies does needan apostrophe. The plural form is butterflies' (the butterflies' wing). Apostrophes are used to show possession.


Do butterflies have arms?

No, butterflies do not have arms. They do have legs and toes which are known as tarsi and used to taste nectar.


What is the control in an investigation?

The control in an investigation is something that is not changed in an experiment. Lets say you have and experiment were you are applying sunlight to plants to see how much sunlight affects the plant. The Sunlight will be the VARIABLE (what is changed) and if you are using the same type of plant, The plant would be the CONTROL.


How many counties did the Checkerspot Butterflies used to be in?

no answer


Why do butterflies land on noses?

It is not known why butterflies land on noses but some think that a butterfly landing on the nose is symbolic. Butterflies are most thought of as signs that are used for after death communication.


Is it true that butterflies used to be known as buttercups?

yes


A sentence for research and investigation?

You should use research and investigation to solve that problem.The scientist used research and investigation to perform her experiment. Research and investigation are the foundations of science.


Do butterflies have artificial breeding?

Yes, but with limitaions. The process is used mostly for studies of genetics and disease control in sericulture applications (silk worms). I am looking into this subject for an extended research application. Most of the work being done is in Japan and India.


Can the feeling butterflies be used in a negative way?

Yes it could be


How many counties did checkerspot butterflies used to live in?

15