![subject](/tpl/images/cats/fizika.png)
Physics, 26.04.2021 22:40 jordand7514
Victoria grows the same bacteria in 20 petri dishes. She places 10 of the dishes in a container with a normal atmosphere. The remaining dishes she places in a container in which the oxygen level is double the normal level. She labels the first group "A" and the second group "B." Which statement best describes the groups?
A. Group A is the control group; Group B is the experimental group.
B. Group A is the experimental group; Group B is the control group.
C. Group A is the hypothesis; Group B is the theory.
D. Group A is the variable; Group B is the observation.
E. Group A is the theoretical group; Group B is the hypothetical group.
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 22:30
Acricket ball of 70g moving with a velocity of 0.5 m/s is stopped by a player in 0.5s what is the force applied to stop the ball
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 15:40
If two parallel light rays hit a mirror, they will not be parallel to each other after they reflect.
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 17:20
You charge a parallel-plate capacitor, remove it from the battery, and prevent the wires connected to the plates from touching each other. when you increase the plate separation, what happens to the following quantities?
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 19:10
Global warming will produce rising sea levels partly due to melting ice caps but also due to the expansion of water as average ocean temperatures rise. to get some idea of the size of this effect, calculate the change in length (in m) of a column of water 1.45 km high for a temperature increase of 1.12°c. assume the column is not free to expand sideways. as a model of the ocean, that is a reasonable approximation, as only parts of the ocean very close to
Answers: 3
You know the right answer?
Victoria grows the same bacteria in 20 petri dishes. She places 10 of the dishes in a container with...
Questions
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 22.07.2019 18:30
![question](/tpl/images/cats/mat.png)
Mathematics, 22.07.2019 18:30
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/istoriya.png)
History, 22.07.2019 18:30
![question](/tpl/images/cats/mat.png)
Mathematics, 22.07.2019 18:30
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 22.07.2019 18:30
![question](/tpl/images/cats/istoriya.png)
History, 22.07.2019 18:30
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 22.07.2019 18:30
![question](/tpl/images/cats/istoriya.png)
History, 22.07.2019 18:30
![question](/tpl/images/cats/mat.png)
Mathematics, 22.07.2019 18:30
![question](/tpl/images/cats/istoriya.png)
History, 22.07.2019 18:30
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 22.07.2019 18:30