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Zolol [24]
3 years ago
13

Why do some investigations require a control?

Biology
2 answers:
avanturin [10]3 years ago
4 0
To be able to compare the results to a sample without any of the independent variable added.
telo118 [61]3 years ago
4 0

Some investigation require control such that they can be able to compare results to a sample even without any of the independent variable which is being added.

Investigation is the act of investigating someone or something. Investigation can work for private investigator. There are different types of investigation. For example, Griffin investigation, Criminal investigation department, Federal Bureau of investigation.

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State one importance of breeding in the vicinity of agriculture.​
Kipish [7]

Answer:

One importance in breeding agriculture plants is to improve the plant's yield, resistance against diseases, and ability to survive in cold conditions.

<em>(I'm assuming the question is asking what the importance is of artifically breeding plants, not literally breeding next to some plants. that would be weird)</em>

8 0
2 years ago
A usable dilution of disinfectant is one that prevents growth of bacteria when compared with the positive control tube. reduces
dolphi86 [110]

When compared to the positive control, a disinfectant dilution is considered to be useful if it stops bacterial growth.

Choosing a disinfectant:

When selecting a disinfectant, keep the following things in mind:

  • The range of bacteria that need to be eliminated. Look into the specifications of the manufacturers.
  • The conditions of usage of disinfectant.

Application of disinfectants :

  • Activity: it is necessary for efficient disinfection since, once diluted, it degrades over time. Different disinfectants deteriorate at different rates. Obtain data from the manufacturers. Disinfectants that don't have a color indication, like Virkon, should be marked with an expiration date.
  • Touch time: it has to be verified that the manufacturer's data to make sure the organism stays in contact for the specified amount of time. Considering that solid materials like cells and tissue granules are difficult for disinfectants to penetrate, autoclaving would be a more effective way to inactivate.

Therefore the correct choice is an option (A).

Learn more about disinfectants here:

brainly.com/question/26199691

#SPJ4

7 0
2 years ago
Do the cells beneath the formative phase differ from each other
Valentin [98]
They differ from each other
8 0
3 years ago
Read 2 more answers
Identify the source of the energy that flows through the field ecosystem.
Anastasy [175]

Answer:

The sun

Explanation:

The is because the sun is the souce of energy

6 0
3 years ago
For the past 2 years, a client has had increasing difficulty remembering the events of the day, but has been able to recall even
SpyIntel [72]

Answer:

Vascular dementia

Explanation:

This is a neurologic condition that is brought about as a result a brain injury caused by ischemic damage e.g ischemic damage with atherosclerosis. Vascular dementia is disease of no known cure but it's effect can be treated or suppressed. It is characterized by patient or client suffering from it to have loss of memory, laughing or crying when it's unnecessary or at awkward times e.t.c it occurs as a result of damage of blood vessels in our brain or break down and it occurs as a result of stroke, diabetes and other factors.

7 0
3 years ago
Read 2 more answers
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