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shepuryov [24]
3 years ago
6

Why Mollusca lost segmentation?

Biology
1 answer:
DiKsa [7]3 years ago
6 0
The ancestors of the Mollusca phylum did not lose segmentation; they never developed it in the first place. Based on their evolutionary development, early species were able to survive without segmentation.
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cupoosta [38]

Answer:

The correct answer is case control study.

Explanation:

A study in which a comparison is made between the patients carrying the disease with the patients not carrying the disease is known as the case-control study. In the mentioned study, the one carrying the disease is termed as cases, and the one that does not possess the disease is termed as controls.  

This form of study is generally done to predict the association between the disease and the risk factor. In case-control studies, only observation is done as no attempt is made to change the course of the condition. The prime objective of the study is to predict the exposure of the risk elements for the individuals present in two groups, that is, controls and cases. This form of study is also called case-referent studies or retrospective studies.  

4 0
4 years ago
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4 years ago
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Mariana [72]
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3 0
3 years ago
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5 0
3 years ago
Alcohol can pass directly into the bloodstream from the mouth or stomach.<br> a.true<br> b.false
Dima020 [189]

Alcohol can pass directly into the bloodstream from the mouth or stomach is a true statement.

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Once the alcohol is in the bloodstream, it gets evenly distributed throughout the body.

4 0
4 years ago
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