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natita [175]
3 years ago
5

Which of the following is not found in an observational study? A-controlled variable B-manipulated variable C-None of these are

found in an observational study. D-control group
Biology
1 answer:
Lunna [17]3 years ago
8 0

Answer:

C-None of these are found in an observational study

Explanation:

(A.) controlled variables are a part of what's found in a controlled experiment. (B.) manipulated variables are a part of what's found in a controlled experiment. (C.) Answer choice A. or Controlled variables, Answer choice B. or Manipulated variables, and Answer choice D. or Control groups are a part of what's found in a controlled experiment. (D.) Control groups are a part of what's found in a controlled experiment. Therefor this only leaves one answer and that answer is Like I said C-None of these are found in an observational study.

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The typical characteristics for binge-eating disorder include binge-eating episodes
Illusion [34]

Answer:

a) not accompanied by purging

Explanation:

  • If a person has episodes of uncontrollable eating then the person is said to have a problem of binge eating.
  • When a person shows a tendency of frequent and recurring binge eating then the person is said to have binge eating disorder.
  • Binge eating disorder is differentiated from another similar problem which is known as bulimia nervosa.
  • In the case of binge eating disorder a person has a tendency of binge eating but without purging, unlike bulimia nervosa where purging is a characteristic feature.
  • Purging is an attempt to get rid of the excess food consumed and this attempt is not made in case of binge eating.
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3 years ago
Three main structure of eukaryotic cell
lyudmila [28]
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3 years ago
an isolated colony on a selective medium is not considered a pure culture because inhibated organizms might be masked by the col
MArishka [77]

An isolated colony on a selective medium is not considered a pure culture because inhibited organisms might be masked by the colonies. This statement is true.

On the basis of their constitution or usage, culture media can be classified into various groups; these include defined, complex, selective, as well as enrichment medium.

A selective medium consists of dyes or noxious substances/chemicals which inhibit the growth of specific microorganisms but promote the growth of other microbes.

A pure culture is a laboratory culture which contains a single species of microorganism. It is free from other microorganisms.

Since selective media affects the growth of distinct organisms differently, therefore, an isolated colony formed in such type of medium is not considered a pure culture.

To learn more about pure culture here

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7 0
1 year ago
Picture below - I really need help
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If a mutation causes a permanent change in the DNA sequence, how is it that most mutations are “silent” mutations?
IgorLugansk [536]

Answer:

(look at the explanation below)

Explanation:

A mutation is a change that occurs in our DNA sequence, either due to mistakes when the DNA is copied or as the result of environmental factors such as UV light and cigarette smoke. Mutations can occur during DNA replication if errors are made and not corrected in time.

7 0
3 years ago
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