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
Mila [183]
3 years ago
14

Which of the following is an example of an ABAB design? Half of the subjects receive one treatment and the other half are not tr

eated. All subjects received one of two treatments. A subject is observed and treated. A subject is observed both before and after two exposures to the treatment.
Biology
1 answer:
Karolina [17]3 years ago
4 0

Answer:

Option D, A subject is observed both before and after two exposures to the treatment.

Explanation:

In A-B-A-B design the alphabets have following meaning

a) First A – It is the baseline value or the value measured before treatment

b) First B – It is the treatment measurement

c) Second A  - It is the withdrawal of treatment  

d) Second B – It is the reintroduction of treatment  

The second A is known as the reversal phase in which the intervention is withdrawn to see if the target behavior returns to the baseline behaviour

Thus , there are two measurements involved one before the intervention and second after the intervention

Option D is correct

You might be interested in
Where does the H+ come from that makes ATP synthase work?
MissTica

Answer:

Chemiosmosis

Explanation:

The electrons from from NADH and FADH2 pass through the electron transport chain in the mitochondria, donating their electrons and generating a H+ buildup. This generates a proton pump to power ATP synthase. This process is called chemiosmosis.

3 0
3 years ago
Read 2 more answers
Desperate !! Please answer !!
dalvyx [7]
I think it’s C. I know I’m right
5 0
2 years ago
PLEASE HELP EMERGENCY!! IF YOU ARE NOT 100% SURE ABOUT YOUR ANSWER DO NOT ANSWER THEN!! PLEASE!!
marysya [2.9K]

Answer:

Lung disease is any problem in the lungs that prevents the lungs from working properly. There are three main types of lung disease:

Airway diseases -- These diseases affect the tubes (airways) that carry oxygen and other gases into and out of the lungs. They usually cause a narrowing or blockage of the airways. Airway diseases include asthma, COPD and bronchiectasis. People with airway diseases often say they feel as if they're "trying to breathe out through a straw."

Lung tissue diseases -- These diseases affect the structure of the lung tissue. Scarring or inflammation of the tissue makes the lungs unable to expand fully (restrictive lung disease). This makes it hard for the lungs to take in oxygen and release carbon dioxide. People with this type of lung disorder often say they feel as if they are "wearing a too-tight sweater or vest." As a result, they can't breathe deeply. Pulmonary fibrosis and sarcoidosis are examples of lung tissue disease.

Lung circulation diseases -- These diseases affect the blood vessels in the lungs. They are caused by clotting, scarring, or inflammation of the blood vessels. They affect the ability of the lungs to take up oxygen and release carbon dioxide. These diseases may also affect heart function. An example of a lung circulation disease is pulmonary hypertension. People with these conditions often feel very short of breath when they exert themselves.

Explanation:

Put it your own words cause this is kinda advance for 7th

5 0
2 years ago
Read 2 more answers
Are logs made up of cells?
aev [14]
Yes logs are made up of cells, Plant cells to be exact.

3 0
3 years ago
Read 2 more answers
Certain chemicals interfere with the functioning of the electron transport chains in mitochondria. During exercise, a likely eff
Dvinal [7]

Answer:

D

Explanation:

4 0
2 years ago
Read 2 more answers
Other questions:
  • How do sexual reproduction produce new plants?
    13·1 answer
  • A client, age 87, with major depression undergoes a sixth electroconvulsive therapy (ect) treatment. when assessing the client i
    5·1 answer
  • Which of the following statements shows an example of operant conditioning? A.) A chicken learns that if it pecks on a button, a
    10·1 answer
  • Something that consists of a star and all of the bodies in orbit around it is called ?
    6·2 answers
  • 11. Which of the following is NOT thought of as surface water in the hydrosphere?
    15·2 answers
  • What occurs in the menstral cycle day 1-4 for unfertilized egg in ovary?
    5·1 answer
  • The purpose of global regulation of the ocean is
    11·1 answer
  • What is difference between nervous and chemical(endocrine) system???
    14·2 answers
  • How do inhibitors change the rate of enzyme controlled reactions?
    9·1 answer
  • Create the complementary DNA strand: CTA GTT ACG GTC AAG
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!