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
tatyana61 [14]
2 years ago
11

Researchers conducted an experiment to identify the effects of three different hand sanitizers on the growth of bacteria. The re

searchers grew one type of bacteria in twenty-four identical covered petri dishes. Then, they opened eighteen petri dishes and applied the three hand sanitizers to six petri dishes each. They left the remaining six petri dishes closed as a control group. When the researchers measured the growth of bacteria two days later, the six dishes that had no hand sanitizer showed the least amount of bacterial growth. The researchers concluded that not using any hand sanitizer would lead to the least bacterial growth.
Which statement best explains why the researchers’ conclusion was not justified?
A. The experiment tested too many variables.
B. The control group was not treated the same as the experimental group.
C. The sample size of twenty-four petri dishes is not large enough.
D. The single type of bacteria is not adequate to make any conclusions.
Physics
1 answer:
jek_recluse [69]2 years ago
5 0
The best and most correct answer among the choices provided by your question is the second choice or letter B.

The researchers’ conclusion was not justified because t<span>he control group was not treated the same as the experimental group.</span>

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
You might be interested in
Physics help please!
Oliga [24]

Answer:

student attach a save block to a horizontal spring so that the block spring system will oscillator with the block spring system released from rest horizontal position that is not the systems equilibrium position well this question regards about the energy used the answer may be 0.73 Joel ok you just try it ok verified

Explanation:

apply applied the potential energy value mean the formula MGH write it means what mass into gravitation in to height

6 0
3 years ago
show the trajectory of a body projected with an initial velocity vat an angle of departure thita is a paraboler​
Jobisdone [24]

Answer:

Let me look up a couple of things regarding this question.

Explanation:

Then I will get back to you.

5 0
2 years ago
If you run 10 km east and then turn around and run 7 km west, how much total distance have you travelled? A. 17 km B. 70 km C. 3
Tom [10]

It's A 17 km because the total km walked is 17.

4 0
3 years ago
Read 2 more answers
Things that are moving out of phase create an interference pattern<br> TURE or False??
Margarita [4]

Answer:

false

Explanation:

I think I am right with this

8 0
3 years ago
What is the resistance force when you walk up an inclined plane?
erastovalidia [21]

Answer:

the resistance force is mg cos(-)

Explanation:

8 0
3 years ago
Other questions:
  • Which is the correct order of events at a power plant?
    11·2 answers
  • How does kinect energy affect the stopping distance of a vehicle traveling at 30 mph compared to the same vehicle traveling at 6
    12·1 answer
  • A children’s roller coaster is released from the top of a track. If it’s maximum speed at ground level is 8 m/s, find the height
    8·1 answer
  • A 51.1-kg crate rests on a level floor at a shipping dock. The coefficients of static and kinetic friction are 0.622 and 0.368,
    11·1 answer
  • A chef places an open sack of flour on a kitchen scale. The scale reading of
    9·1 answer
  • Perform calculations using the circuit illustrated. Round
    14·1 answer
  • A _____ is used in a motor to switch the direction of the magnetic field created by the current.
    10·1 answer
  • You've been called in to investigate a construction accidentin
    15·1 answer
  • Please please help me please please help please please help me please
    12·1 answer
  • When you changed from low to high power, how did the change affect the working distance of the lens?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!