PLEASE HELPPP question and choices in the picture below
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![answer](/tpl/images/cats/otvet.png)
Answers: 3
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Biology, 22.06.2019 07:30, ebzloera
Which statements best describe the differences or similarities between a comparative investigation and an experimental investigation? check all that apply. experimental investigations are best for showing cause-and-effect relationships, while comparative investigations do not necessarily show this type of relationship. comparative investigations are often impractical and unrealistic, while experimental investigations are the most practical and realistic kinds of investigations. comparative investigations allow for the use of a wide range of variables but do not have a control group, while experimental investigations involve variables that can be controlled. both experimental investigations and comparative investigations are designed to answer scientific questions. both experimental investigations and comparative investigations focus on making observations rather than collecting new data.
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The picture represents a structure of the respiratory system. which is the function of this structure? to bring air into the body to exchange oxygen with carbon dioxide to carry air to the lungs to release oxygen from the body
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Biology, 22.06.2019 13:30, jeanine239
During the process of blank and molecules such as a glucose must use a protein channel to cross through a cell membrane
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Biology, 22.06.2019 14:00, quentonwise
The (blank) states that all loving things are made of cells.
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