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
Wittaler [7]
3 years ago
13

Salmah suspects that she has been given a forged cheque. How can

Biology
1 answer:
Alex73 [517]3 years ago
4 0

Answer:

Paper Chromatography

Investigators use paper chromatography to distinguish the different brands of ink pens used by the suspects and compare it to the forged cheque.

You might be interested in
Plants ________ to protect themselves from herbivores.
crimeas [40]
The first line of defense in plants is an intact and impenetrable barrier composed of bark and a waxy cuticle. Both protect plants against herbivores. Other adaptations against herbivores include hard shells, thorns (modified branches), and spines (modified leaves).
3 0
3 years ago
Read 2 more answers
What are the elements of a good graph
zloy xaker [14]
Labeling is on..... And correct graphing lol
7 0
3 years ago
Read 2 more answers
What organelle in muscle cells was affected most during exercise? Explain how the function of this organelle relates to the brea
Alex787 [66]
<span>The most affected organelles are the mitochondria. Since the movement is energy mitochondria provide the energy needed for the muscle tissue contraction using up ATP in the process. And since oxygen is needed for the production of ATP when consumption of ATP is ramped up it also needs more oxygen to replenish the ATP consumed in exercise. Hence the accelerated breath.</span>
4 0
3 years ago
Read 2 more answers
DNA is isolated from a clinical sample. The absorbance at 260nm is 0.489, and the absorbance at 280nm is 0.257. Is this sample o
MArishka [77]

Answer:

Yes

Explanation:

A high quality DNA sample will have a 260/280 ratio of around 1.8. This value means that the DNA is sufficiently pure and free from other contaminants that could affect downstream experiments and analysis.

The ratio for this sample is 0.489/0.257 = 1.9

This is close to 1.8, and therefore the sample is of sufficient quality ot use downstream.

7 0
3 years ago
Why is cytosis affected by oxygen levels but diffusion is not?
Juli2301 [7.4K]
  <span>Cytosis requires energy, and the production of energy depends on oxygen. Diffusion does not require energy.</span>
3 0
4 years ago
Read 2 more answers
Other questions:
  • What is the capillary action of water?
    10·1 answer
  • I need help with this please
    9·1 answer
  • What microscope would be appropriate for looking at the shed
    12·1 answer
  • Because connective tissue is found throughout the body, more than just anne marie's joints and skin could be affected by ehlers-
    9·1 answer
  • Bill Builder entered into a contract with Carl's Carpets to supply him with the carpeting he needed to complete the renovation o
    15·1 answer
  • What's the genotype and phenotype of all traits of the offspring? Please explain connecting the two and how they are determined.
    9·1 answer
  • What process adds oxygen to ocean water?
    13·2 answers
  • In which situation is speciation most likely to occur?
    12·1 answer
  • How can you tell me when energy has been transferred? Can you plz Explain support &amp; claim PLz HElP!!!​
    7·1 answer
  • Which of the following most accurately describes what jeans do
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!