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
Naddika [18.5K]
2 years ago
9

Ms.Tim wants to find out how sleep affects students test scores.He organized two groups of students.In Group A, He has student s

leep for three hours and then take the test.In Group B , he has students sleep a normal amount of hours (8 hours) and has them take a test.
• What is the independent variable?

• What is the dependent variable?

• Which is the experimental group

• Which is the control group?
Biology
1 answer:
Makovka662 [10]2 years ago
6 0

Answer:

Independent Variable: Hours of sleep

Dependent Variable: Test scores

Experimental Group: Group A

Control Group: Group B

Explanation:

Hours of sleep is the independant variable because it is the factor being tested by the teacher. This is the factor that can be controlled.

Test scores is the dependant variable because it is the factor being affected by the changes in the independent variable. This is the variable being measured.

Group A is the experimental group because this is the one that has been altered or changed from what is normal.

Group B is the control group because nothing is being changed in this group but simply measured as a basis for comparison.

You might be interested in
In which way does the circulatory system rely on the skeletal ayatem?
IgorLugansk [536]
<span>Bone marrow which is located <span>within the spongy or cancellous portions of bones is the essential site of new blood cell production or hematopoiesis. Bone marrow contains stem cells which able to differentiate into specialized cell types. People with diseases like blood cancers, such as leukaemia and lymphoma, sickle cell anaemia, and other rely on bone marrow transplantation to survive.</span></span>
3 0
3 years ago
Which of the following is an example of a population
Marat540 [252]
I need to have some choices
6 0
3 years ago
Read 2 more answers
Dumping of organic wastes into a lake may result in anaerobic conditions in the lake because
adoni [48]
I believe the answer is C
8 0
3 years ago
A g-protein receptor with gtp bound to it _____.
Blababa [14]
Ddddddddddddddddddddddddddddddd
5 0
3 years ago
How is a brain injury classified?
faltersainse [42]

Answer:

As an injury of the central nervous system.

Explanation:

Peripheral nervous system is the nervous system outside the brain and spinal cord. The central nervous system consists of the brain and spinal cord. The autonomic nervous system is a control system that acts largely unconsciously and regulates bodily functions, such as the heart rate, digestion, respiratory rate, and more. The somatic nervous system is the part of the peripheral nervous system associated with the voluntary control of body movements via skeletal muscles. Therefore, central nervous system is your answer!

Hope this helps :3

6 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following is TRUE for lipids?
    10·1 answer
  • ASAP Which type of autopsy do you think would provide the best results in the case regarding Dr. Fisher and why?
    8·1 answer
  • Define adhesion in your own words
    7·1 answer
  • Select all that apply . What are the waste products of respiration ?
    14·1 answer
  • How are photosynthesis and cellular respiration related apex?
    5·1 answer
  • Ecologists survey the tree species in two forest plots. plot 1 has six different species, and 95 percent of all trees belong to
    13·1 answer
  • 9. How are bacteria different from viruses?
    6·1 answer
  • IF 9 PINTS OF ICE CREAM COST $54, HOW MUCH DOES 2 PINTS OF ICE CREAM COST?
    13·1 answer
  • Question 9 of 17
    8·1 answer
  • Where does most ocean pollution come from
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!