1answer.
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
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.

You might be interested in
Oxygen is a reactant in cellular respiration. Which term best describes oxygen
tekilochka [14]

Answer:

ANSWER: Oxygen is a product of photosynthesis.

Explanation:

 Photosynthesis is a chemical reaction that occurs in plants.  Photosynthesis uses ATP energy from sunlight to convert Carbon Dioxide and Water into Glucose.  Oxygen is also formed during photosynthesis.  

4 0
3 years ago
"Human activities change only the biotic features of an ecosystem." Is this statement true o false? Please explain why or why no
Umnica [9.8K]
Related to living organisms
the biotics requlating of the environment is a key to global change
7 0
3 years ago
Please help me please will give brainliest ​
Svet_ta [14]
Is this just a random question or is there any information given to us about his parents? if not, C would be your answer
7 0
3 years ago
All answers but "the blood brain barrier does not factor in with endocrine signaling. " are true.
padilas [110]
Endocrine signaling is hormone based signaling that travels through the blood stream. Many of the sensors and integrating sensors of the endocrine system are located in the brain. The brain barrier contributes to endocrine signalling, such that the brain barrier does not factor in with endocrine signalling. The answer is A
7 0
3 years ago
Read 2 more answers
Describe how the picture below represents the function of the immune system
Oksanka [162]

Answer:

The Human Immune system helps fight bacteria and germs and viruses because without the Immune system we could die it is what protects us from The flu and sometimes cov id with a weak immune system we might no survive.

Explanation:

4 0
3 years ago
Other questions:
  • The strength of an earthquake can be measured by a scale, while the after effects or damage from an earthquake is measured by a
    9·2 answers
  • Under which of the following conditions will speciation not occur?
    6·1 answer
  • What is one way that calcitonin and parathyroid hormone maintain homeostasis?
    9·2 answers
  • Which of the following allows a cell to decipher the generic code
    8·1 answer
  • Transdermal patches are intended to release a drug over an extended period of time. Particular care must be used with this type
    5·1 answer
  • Which of these doctors is most likely to perform a skin test?
    7·2 answers
  • A zebra cell is just about to replicate its DNA. Which of the following will happen first?
    13·2 answers
  • Listen<br> State one way scientists could use the banding patterns produced by gel electrophoresis.
    8·1 answer
  • Need help asap! You will recieve 20 points if you are correct.
    14·1 answer
  • Kidney<br> Cuboidal cell<br> Epithelial tissue<br> Urinary system
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!