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
dimulka [17.4K]
3 years ago
10

Hi harshikaanswer fast​

Biology
1 answer:
I am Lyosha [343]3 years ago
8 0

Answer:

Explanation:

arey who is this harshika???????

You might be interested in
What would be the best negative control to use when testing for any organic compounds
ra1l [238]

Explanation:

A similar question was asked online, here is the answer it gave:

'“Negative control” is a treatment that by definition is expected not to have any effect (neither positive effect, nor negative effect). “Positive control” is treatment with a well-known chemical that is known to produce the expected effect with the assay that you are studying. Application of an antagonist is not a negative control in your case. “Negative control” is condition that should be treated with the same solutions or buffers as your “treatment” condition, with the only difference that instead of the chemical that you investigate you should add just the solvent that was used to dissolve you chemical in the respective final concentration that you have in the “experimental treatment” condition. For example if your chemical is dissolved in DMSO – than the correct negative control will be to add to the medium/buffer just DMSO in the same final concentration that you reach with your “treatment” condition. One of the reasons of using such negative control is to verify that the solvent is having no effect in your assay. Note that among all treatment conditions (“negative control”, “positive control”, “experimental treatment you are investigating”) the volumes and the composition of the treatments that you are doing should be uniform: always treat with the same volume of medium or buffer, always containing the same concentration of the used solvent (e.g., DMSO). The only difference should be the presence or absence of the defined compound-treatments (agonist, antagonist, the chemical for the experimental investigation etc.).'

My best advice is to use the textbook you have, or use examples of a negative control when testing organic compounds because you have to find something that you can assign, like a worm in a box of dirt, the worm could have enough food to survive, so that is your negative control, but when it comes to finding the best, that would have to rely on something within the parameters of being self sufficient like a plant getting its energy from photosynthesis, etc.

Atanasov, Atanas. (2013). Re: Positive control and negative control. Retrieved from: https://www.researchgate.net/post/Positive_control_and_negative_control/515968f2d039b1fe50000025/citation/download.

7 0
3 years ago
Which of the following is an example of a
tigry1 [53]

Answer:

the wings on bees and birds

4 0
2 years ago
What statement is correct about the polarity of a water molecule?
fgiga [73]
Where is the picture? Is there a picture?
8 0
3 years ago
Read 2 more answers
Which of the following is not true of reproduction in a pine tree? A) the polloen tube contains two diploid sperm. B) the zygote
abruzzese [7]
B. is not true so that is your answer.
8 0
3 years ago
Where is the epicenter of this hypothetical earthquake
likoan [24]
The epicenter of a hypothetical Earthquake is the place where the fault begins to rupture. The tectonic movements within the epicenter is actually the area with the greatest damage after an Earthquake occurs.

The epicenter is the most dangerous zone during an Earthquake because the ground is very much unstable, but as the seismic activity dissipates it is the first one to set and stabilize because this is where the plates will converge. 
8 0
3 years ago
Other questions:
  • Which cellular structures are the machines that build protein? where are they located?
    5·1 answer
  • The Florida Everglades have declined in size and suffered from pollution due to overpopulation. When runoff occurs, a dense grow
    12·1 answer
  • Who recognized that different layers of rock contained unique collection of fossils?
    13·2 answers
  • Describe one niche in the ecosystem.
    5·1 answer
  • AL has a pet cat. one day he observes that it is scratching and urinating on tree trunks in his yard. what behavior is al's cat
    13·2 answers
  • Diploid means<br> A. divided<br> B. two sets<br> C. split
    14·1 answer
  • All marsupials except one group exist on the continent
    11·1 answer
  • Which statement about how organisms depend on abiotic factors in an aquatic ecosystem is not true?
    13·2 answers
  • The cold virus causes disease when it enters the _____ of the human body.
    8·1 answer
  • 1. How does the number of chromosomes in a cell that results from meiosis compare to the number of chromosomes in the original c
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!