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topjm [15]
3 years ago
13

Identify which of the following six types of study designs most appropriately characterizes the situation described below. To te

st the efficacy of a health education program in reducing the risk of foodborne and waterborne diseases, the residents of two Peruvian villages were given an intensive health education program. At the end of two years, the incidence rates of important water-borne and food-borne diseases in these villages were compared with those in two similar control villages without any education program.
Cross-sectional study
Case-control study
Prospective cohort study
Historical prospective cohort study
Clinical trial
Community trial
Biology
1 answer:
mina [271]3 years ago
5 0

Answer:

The correct answer is prospective cohort study.

Explanation:

A prospective cohort study is a type of observational research used in epidemiology to establish relationship between exposure and outcome.

Essentially, investigators follow two populations (one exposed to the factor under study and one not exposed) over time until the outcome occurs.

With this type of research, incidence (probability of occurrence) can be calculated, because a timeline is present.

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When glucose is taken into the cell, the fluids or solutions in the cell become more concentrated  (due to the absorbed glucose) than the fluids outside the cell. When this happens, a natural process called osmosis takes place .

Osmosis is defined as the movement of molecules of a solvent (in this case water) through a semi-permeable membrane (in this case the cell membrane) from a less concentrated solution to a more concentrated one in a bid to to equalize the concentration on both sides of the membrane.

Water will therefore leave the less concentrated solution outside the cell, pass through the cell membrane and into the more concentrated solution.

  
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While the Cenozoic is often incorrectly referred to as the "Age of Mammals", in what time period were synapsids the dominant ter
Misha Larkins [42]

The correct answer is A. Permian.

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What happens when the cycling of matter in ecosystems is disrupted
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Answer:

When cycling of matter in the ecosystems is disrupted, the whole ecosystem will be adversely affected. Matter includes living organisms such as plants, animals and microorganisms while non living things such water, air and nutrients etc. If plants are removed from the ecosystem system, then the whole ecosystem is destroyed because plants are the producer which make food for herbivores. These herbivores are eaten by carnivores and so on.

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The light reactions of photosynthesis take place on the thylakoid membranes. Which structure is the thylakoid?
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3 years ago
Read 2 more answers
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