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Nikolay [14]
3 years ago
10

an advertisement on tv claims children grow faster with the use of vitamin gro. vitamin gro is a 25mg pill taken twice a day. th

e viewer has little knowledge about how children grow, but he knows that children need a complete diet and a good exercise routine. he decided to put the commercial to the test. the viewer uses his 6 nieces who are the same age to conduct the experiments. to make the experiment easier he uses his six nieces using labels such as child 1, child 2 and so on. he records their height every 3 days for 7 days. What are the variables?
Biology
1 answer:
LUCKY_DIMON [66]3 years ago
4 0

Answer:

Independent variable - vitamin gro and exercise routine.

Dependent variable - growth of children or nieces.

Explanation:

There are two variables present in an experiment called dependent and independent variables.

Independent variables are those variables which can be controlled in an experiment and dependent variables are those variables which are measured in the experiment under the influence of the independent variable.

In the given experiment, the independent variable will be vitamin gro and exercise routine and the dependent variable is the growth of children or nieces because vitamin gro and exercise routine can be controlled and growth of children is dependent on vitamin gro and exercise routine.

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Answer please emergency and thank you if you help
Iteru [2.4K]

Answer:

B

Explanation:

I hope this helps you out!

7 0
3 years ago
Austin is in a study related to Mary Ainsworth's theory of mother-infant attachment. He is securely attached. Therefore, he show
Vesna [10]

Austin who was securely attached in Mary Ainsworth's theory of mother-infant attachment likely showed confidence in his caregiver's ability to protect him.

Options to this question were not provided. However, it is worthy to note that Mary Ainsworth's theory of mother-infant attachment classifies the relationship that children have with their caregivers as; Secure, Resistant, and Avoidant.

The Securely attached children are distressed when their mother is absent, they avoid strangers when their mother is not around but become friendly to strangers when their mothers are present.

They are also happy when their mother is around.

Generally, these sorts of children are confident and exhibit high self-esteem. So, Austin must have displayed some of these qualities.

Learn more about Secure Attachment here:

brainly.com/question/24726649

6 0
2 years ago
what is the texture and appearance of the potato strips after being immersed in various concentration of sucrose solution​
Alexxx [7]

This process is a technique of osmosis. Osmosis is the movement of solvent particles. For example,  water along its concentration gradient, from high to low concentration, via a semi-permeable membrane is changing the structure of the molecules in the potato strips.  

Since the environment of the potato strips are in a sugar concentrate, the potato will lose its water content and so loses weight and the strips will be thinner and dryer.

6 0
3 years ago
2) How many solutions does the equation 4x + 2(x-5) = 3(2x - 4) have? Write down the final form as well as if it has no solution
Brilliant_brown [7]

Answer:

0 = -2, hence no solution.

Explanation:

4x + 2(x-5) = 3(2x-4)

4x + 2x - 10 = 6x - 12

     6x - 6x = -12 + 10

               0 = -2

3 0
2 years ago
which one of the plants pictured below was given water mixed with salt, and which one was given pure water? Explain how you know
ludmilkaskok [199]

The plant on the right must have been the one given a saltwater mixture while the one on the left must have been given pure water.

<h3>Osmosis</h3>

Looking at the attached image closely, one would see that the plant on the right has withered leaves while the leaves of the plant on the left seem to be flourishing.

The plant on the right must have been the one fed with water mixed with salt and here is the reason. Adding water mixed with salt to the soil on which the plant grows will decrease the water potential of the soil relative to the water potential of the plant's root. Thus, water will move from the plant into the soil through the root by osmosis. This will cause the various cells of the plant to become flaccid, and hence, the withered leaves.

On the contrary, the plant on the left must have been fed with pure water. Feeding the soil with pure water will increase the water potential of the soil relative to the water potential of the plant's root. Thus, water will move from the soil into the plant through the root by osmosis. This will cause the various cells of the plant to become turgid, and hence, the flourishing leaves.

More on osmosis can befound here: brainly.com/question/21395644

#SPJ1

3 0
1 year ago
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