answer.
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
RSB [31]
2 years ago
13

A personal trainer thinks her clients get better workouts and are stronger if they listen to music while working out. Over the n

ext week, she divides her 20 clients into two groups of 10. For the first group, she plays music and sees if they can lift a barbell weighing 50 lbs. For the second group, she repeats the test but does not play any music. All 10 members of the music group could lift the barbell, but only 7 members of the no music group could lift the barbell. She concludes that her hypothesis was correct and decides to always play music for her clients.
Which group was the control group?
Biology
1 answer:
katrin [286]2 years ago
7 0

Answer:

The correct answer is: the group of 10 people that lifted the barbell with music is the control group.

Explanation:

The personal trainer made an experiment to test her hypothesis. When experiments are being made, is common to have a control group and an experimental group.

The control group is the one that is subjected to the usual conditions, the group that shows what normally happens. The experimental group is the opposite, this group is observed while it goes through an unusual condition that may impact how they perform in the task observed.

<u>The personal trainer thinks that playing music for her clients is of benefit to them, so we can assume that she always plays music during the workouts, which means that the control group is the one that is listening to music while lifting a barbell</u>. The group that worked out without music is the experimental group because they were the ones that performed that activity with a change in their normal environment.

You might be interested in
Monarch butterflies have brightly colored orange wings with black patterns on them, making them easily visible to birds that eat
Tresset [83]

Answer:

The bright color of butterflies is a discouraging factor for its prey

Explanation:

Butterflies and caterpillars are easily visible to its prey but still they do not eat any of them. This can be because of two factors –

a) The bright color of these organisms might be a factor that makes them uninteresting (intending to be  tasteless etc.) for their prey

b) The bright color might be a signal to the bird indicating in advance of any harm associated with the butterflies/caterpillar feeding.

Hence , instead the Monarch butterflies have brightly colored orange wings with black patterns on them, making them easily visible to birds, the  birds rarely eat the monarchs

7 0
2 years ago
What does the equation npp = gpp − r represent?
sergejj [24]
It is the Flow of energy, where R is the energy used in Respiration by the organisms, whose magnitude with Gross production equals to Net production.
6 0
2 years ago
Describe 2 flowers that differ greatly
Ludmilka [50]
There are many examples you can choose from, but one great example, a venus fly trap, and a lotus, for example. The two examples given differ because they:
*provide themselves with different types of foods
*have a different system of reproducing, as well as growing
*and live in two different types of environments.
Also, remember, the fly trap is a carnivorous plant, while the lotus is not
5 0
2 years ago
Read 2 more answers
]Which of these statements best explains why land breeze blows during the night in coastal locations?
natita [175]
The best and most correct answer among the choices provided by your question is the second choice.

<span>Land breeze blows during the night in coastal locations because sea gets heated up faster than land at night. </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!
5 0
2 years ago
Forskolin is a drug used by scientists to render adenylyl cyclase (AC) constitutively (always) active. What will this do to to P
Paul [167]

Answer:

Both the PKA and IP3 levels increases. Hence, the correct answer is a and b.

Explanation:

Forskolin refers to a drug that increases the levels of cAMP or cyclic AMP by stimulating the enzyme adenylyl cyclase. The cAMP is an essential secondary messenger that ensures proper biological response of cells to hormones and other signals and also takes part in communication between the cells.  

When Forskolin increases the levels of cAMP, it will stimulate the enzyme PKA or protein kinase A and at the same time also enhances the intracellular concentration of Ca2+ and IP3 (inositol 1,2,5 triphosphate).  

7 0
2 years ago
Other questions:
  • Benjamina started her walk from the front door of her ground floor apartment. She walked 6 meters to the corner of the building
    5·2 answers
  • A virus's ability to infect an animal cell depends primarily upon the
    9·1 answer
  • Lymphoid tissue that appears as a swelling of the mucosa in the oral cavity is called a(n) _____________ .
    13·1 answer
  • Indicate the stages of life on the timeline including the definite articles. do not repeat any labels. note that items 2-6 refer
    7·2 answers
  • A pregnant woman complains, "i have had morning sickness for one week, which caused me to eat less. i am experiencing irritabili
    12·2 answers
  • You are sorting cards with pictures of organisms and their descriptions into groups. You would place the card with an osprey and
    10·1 answer
  • Why do dinoflagellates thrive in bahia fosforescente
    6·1 answer
  • Based on the results of the mouse coloration case study, suggest another hypothesis researchers
    6·1 answer
  • Turkey vultures eat carrion, which is decaying animal matter, like roadkill. How are they classified?(1 point)
    10·2 answers
  • How would a geologist use absolute dating to determine the age of sedimentary layers? by dating the age of intrusions and extrus
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!