Answer:
C
Explanation:
The complete question: A student conducts an experiment to see how music affects plant growth. The student obtains four identical plants. Each one is potted in the same type of soil and receives the same amount of sunlight and water each day. Plant A listens to classical music for three hours each day. Plant B listens to rock music for three hours each day. Plant C listens to country music for three hours each day. Plant D does not listen to any music at all. In the experiment described in the scenario, which group represents the control group? A. Plant B B. Plant A C. Plant D D. Plant C?
<u>The control group here would be plant D.</u>
Control groups are usually used to minimize the effects of extraneous variables in the course of experiments and to ensure that the differences observed in different experimental groups are due to the effects of the independent variables.
<em>In this case, all the plants were exposed to music except the control group because the aim of the experiment is to measure the effects of music on plant growth. Any difference in growth observed between those exposed to music and the control group can reliably be considered to be due to the music.</em>
The correct option is C.
TRUE if the genetic component of a family history of osteoarthritis, rheumatoid arthritis, or ankylosing spondylitis is significant.
<h3>What are rheumatoid arthritis, ankylosing spondylitis, and osteoarthritis?</h3>
Ankylosing spondylitis (AS) and rheumatoid arthritis (RA) are two of the most prevalent rheumatic illnesses. The joint degradation and decline in physical fitness are caused by these chronic progressive inflammatory disorders. [1] Their symptomatology and etiology differ despite being closely related.
<h3>What aspects of a patient's condition might point to a higher risk of osteoarthritis?</h3>
Age: As people get older, their chance of having OA rises. Gender—After the age of 50, women are more likely than males to acquire OA. Obesity—Extra weight increases the strain on joints, especially those that bear the body's weight, including the hips and knees.
To know more about osteoarthritis visit:-
brainly.com/question/29569397
#SPJ4
The Answer Is 27% . . . . . . . . . . . . . The dots are so I can post the answer, because without a long reply I can't answer.
The correct option is D.
Carbohydrate is the main energy source for living organism. When carbohydrate food are consumed, the digestive enzymes break the carbohydrate down to glucose. The body cells use glucose as a source of fuel to produce energy which they use for their metabolic activities.
