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
djverab [1.8K]
3 years ago
8

At the start of the lab, you will test known samples in order to see what positive and negative test results look

Biology
1 answer:
son4ous [18]3 years ago
8 0

Answer:

I feel it's to easily differentiate the positive from the negative...... like in gram staining of bacteria, the colour tell us which bacteria is gram positive or gram negative...... I just feel that this is science and it is advisable to know what the opposite result of an experiment should look like.

You might be interested in
The cell membrane around a cell forms a barrier that protects and regulates the cell. Certain chemicals can pass through the pla
Oksi-84 [34.3K]
They are soluble. Often, they are of an appropriate polarity and size as well. 
8 0
3 years ago
Read 2 more answers
Which two organelles are found in plant cells but not animal cells
Inessa [10]
A large central vacuole, and chloroplasts. 
8 0
3 years ago
How does type 1 diabetes impact the negative feedback loop that controls glucose levels in the bloodstream?
Nastasia [14]

Answer:

Insulin causes the body's cells to take in and store glucose, lowering the blood glucose concentration. If blood glucose gets too low, the body releases glucagon, which causes the release of glucose from some of the body's cells.

Explanation:

7 0
3 years ago
What is a reasonable action that provides safer water for communities?
Ulleksa [173]

Answer:

1.Improve sanitation facilities by providing toilets and latrines that flush into a sewer or safe enclosure.

2.Promote good hygiene habits through education. ...

3.Implement rainwater harvesting systems to collect and store rainwater for drinking or recharging underground aquifers.

4 0
3 years ago
Which activity does a local health department perform when providing health and environmental services?
balandron [24]

Answer:

Explanation:

Local health department links up patient with adequate health care needed especially area where good health facilities is reduces and cannot be access, they prevent spread of disease by given immunizations.

They also help in avoiding spread of diseases and infections by working with other health agencies to create awareness.

In the environment, some of them ensure access to to good and clean water, they develop plans when emergency cases arises and during disaster.

8 0
3 years ago
Other questions:
  • Gel analysis of fragments in step 6 shows that even though the undigested DNA and DNA digested with HindIII are both 1000 bp, th
    11·1 answer
  • The three types of hazards that make food unsafe are
    5·1 answer
  • Ripple marks likely indicate that a rock formed _____.
    6·2 answers
  • How are dna and mrna alike
    5·2 answers
  • Local folding of a protein occurs at what defined level of protein folding?
    13·1 answer
  • What does the theory of evolution contribute to conservation biology?
    11·1 answer
  • 1. Describe at least one part of the experiment procedure you thought was essential for getting good results. Did you find that
    7·1 answer
  • Instead of seeds, seedless plants produce cells called
    9·2 answers
  • Ccording to Sir Isaac Newton, gravity depends on two factors. What are they?
    8·1 answer
  • Enumerate ways on how humans produce sound:Ex:clapping your hands
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!