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
GenaCL600 [577]
3 years ago
10

The essential difference between an experiment and an observational study is that a. observational studies always involve large

numbers of subjects, but experiments never dob. in an experiment, information is gathered only on animals or things, but in an observational study, only information about people is gatheredc. an experiment imposes treatment on the subjects, but an experiment does not
d. an observational study imposes treatments on the subjects, but an observational study does not
Biology
1 answer:
Nataly_w [17]3 years ago
3 0

Answer:

An experiment imposes treatment on the subjects, but an observational study does not

Explanation:

Observational studies are research studies in which an effect, process behaviour etc. are observed, without any change. For example, observation of the  possible effect of a treatment on subjects.

On the other hand, experimental studies are studies in which the treatment is included. Experimental studies are randomized, meaning that subjects that are in experiment are randomly put to a treated group or a control group.

You might be interested in
The first steps in glycolysis involve
Nat2105 [25]

Answer:

E I think

Explanation:

Turning glucose into pyruvates (Glucose got split)

4 0
2 years ago
During human gestation, rudiments of all organs develop A. in the first trimester. B. in the second trimester. C. in the third t
Y_Kistochka [10]

During human gestation, rudiments of all organs develop in the first trimester.

<h3>What is the first trimester?</h3>
  • Most people (including your doctors and midwives) divide a full-term pregnancy, which lasts about 9 months, into three 'trimesters'.
  • The first trimester of pregnancy is measured from the first day of your last period to week 12, even though you are pregnant from the moment of conception, when a male sperm fertilizes your ovum (egg), when you become pregnant.
  • This is so that the majority of women who conceive naturally won't be aware of the conception date.
  • Because the changes that occur to you and your unborn child fall into the three general categories of early, middle, and late pregnancy first, second, and third trimesters are a useful way to think about pregnancy.

Learn more about trimester here:

brainly.com/question/24174987

#SPJ4

5 0
2 years ago
Which of the following would be a good question for an interviewee to ask during an interview?
katrin [286]
The answer should be the A.
4 0
3 years ago
Read 2 more answers
When did people first know about archaebacteria?
xeze [42]

Answer:

1977 is when people first knew about archaebacteria

7 0
3 years ago
Read 2 more answers
5. The occurrence of large or small beak sizes among seed crackers in the absence of
almond37 [142]

Answer:

Disruptive selection

Explanation:

Disruptive selection favors both of the extremes ( large and small beaks) Thank me later:)

4 0
3 years ago
Other questions:
  • Will give BRAINLIEST
    8·2 answers
  • Each band on a stained chromosome represents a single gene true or false
    13·1 answer
  • How can an experiment support or fail a hypothesis?
    7·1 answer
  • Which organism gathers its energy directly from the sun?
    12·1 answer
  • The domain _____ contains all eukaryotic kingdoms
    5·1 answer
  • Which statement describes the cell cycle?
    5·2 answers
  • Which of the following is a common renewable resource found in deserts
    9·1 answer
  • Identify two individuals from Document A who are likely most closely related. Justify your claim with evidence from the document
    15·1 answer
  • What impact does increased CO2 in the atmosphere have on marine life? Claim, Evidence and reason.
    15·1 answer
  • The area of the continental US most likely to have volcanic activity is the ______________
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!