1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Dima020 [189]
3 years ago
12

Residents of three villages with three different types of water supply were asked to participate in a study to identify individu

als who were cholera carriers. Because there had been several recent deaths due to cholera, almost everyone participated in the study and underwent examination and testing. The proportion of residents in each village who were carriers was computed and compared. What is the proper classification for this study?
a. Cross-sectional studyb. Case-control studyc. Prospective cohort studyd. Retrospective cohort studye. Experimental study
Biology
1 answer:
Alexus [3.1K]3 years ago
5 0

Answer:

The correct answer is option a. "Cross-sectional study".

Explanation:

A cross-sectional study is a type of observational study used in medical and social researches. Cross-sectional studies are characterized by the analysis of data that comes from a population at a specific point of time. A research that involves studying the incidence of cholera carriers at three different villages with three different types of water supply, is an example of a cross-sectional study.

You might be interested in
Why does the cell go through elaborate process to convert glucose into carbon dioxide and water?
Tems11 [23]
Cellular<span> Respiration. </span>Cellular<span> respiration is the </span>process<span> of oxidizing food molecules, like </span>glucose<span>, to </span>carbon dioxide and water<span>. The energy released is trapped in the form of ATP for use by all the energy-consuming activities of the </span>cell<span>.

</span>
4 0
3 years ago
Name the processes involved in protein synthesis
Artist 52 [7]
The answer is transcription and translation
8 0
3 years ago
Read 2 more answers
Choose the sentence that contains the correct subject-verb agreement.
velikii [3]
The sentence, from the choices given, that contains the correct subject-verb agreement is; Books and television entertain us on a rainy day. The correct answer will be A. 
5 0
3 years ago
The ________ duct empties into the vestibule at the level of the second upper molar.
gavmur [86]

The parotid duct empties into the vestibule at the level of the second upper molar.

Around the back of your lower jaw is where the parotid gland is located. Saliva then passes via a tube known as the parotid duct. The duct's opening is where the saliva spills into your mouth. Different factors might cause the parotid duct to become clogged. The region may swell up as a result of this.

Each gland's front faces a lengthy excretory channel called the parotid duct, which emerges just beneath the masseter muscle. The duct enters the mouth by the buccinator muscle and opens on the inner cheek surface, typically next to the maxillary second tooth

To learn more about Parotid duct please visit -brainly.com/question/14327466
#SPJ4

4 0
2 years ago
Pollen is produced by the process of
MariettaO [177]

Answer:

Pollen is produced during the pollen formation cycle of a flower.

Explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • What are the three domains in life
    6·2 answers
  • Explain why two distinct species choose to help each other and what is that called?
    5·1 answer
  • Please help as soon as possible <br>DUE TOMORROW ​
    15·1 answer
  • How might scientific knowledge about monoculture farming affect societal decisions? Please be sure to answer in complete sentenc
    8·1 answer
  • URGENTTTT!!<br>does a fire respond to its environment?​
    6·1 answer
  • Sketch a replication fork of bacterial DNA in which one strand is being replicated discontinuously and the other is being replic
    11·1 answer
  • Name and explain all of the stages of the carbon cycle.
    9·1 answer
  • The two strands of dna are held together in a double helix by ______ bonds.
    12·2 answers
  • Microorganisms often lead to infection because they-
    11·1 answer
  • What is the ability to rhythmically depolarize without outside stimulation called?.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!