answer.
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
Ilya [14]
2 years ago
15

Check all the ways listed below that ensure accurate reading of volume from a graduated pipette. tapping the base of the pipette

on the table using subtraction to determine the volume dispensed making sure that you read the volume with the liquid inside the pipette at eye level reading only the final volume of liquid after dispensing ensuring that air bubbles are not in the column of liquid inside the pipette
Biology
2 answers:
zavuch27 [327]2 years ago
6 0

Answer:

  • using subtraction to determine the volume dispensed.
  • making sure that you read the volume with the liquid inside the pipette at eye level.
  • ensuring that air bubbles are not in the column of liquid inside the pipette.

Explanation:

The pipette is a widely used laboratory material, and its main function is to transport precise quantities of liquid material. They are used, for example, in various medical examinations and in the study of molecular biology. There are several types, such as the graduated pipette, the volumetric pipette, the automatic pipette and also the micropipettes (for very small amounts of liquid). Using a pipette requires careful attention not to use wrong volumes of liquid to be used. For this reason, it is correct to say that when handling a pipette we must:

  • using subtraction to determine the volume dispensed.
  • making sure that you read the volume with the liquid inside the pipette at eye level.
  • ensuring that air bubbles are not in the column of liquid inside the pipette.
nadezda [96]2 years ago
3 0

using subtraction to determine the volume dispensed

making sure that you read the volume with the liquid inside the pipette at eye level

ensuring that air bubbles are not in the column of liquid inside the pipette


You might be interested in
the development of which type of microscope made it possible to create high-resolution three-dimensional images of living cells
enot [183]
Cryo-electron microscopy (cryo-EM), or electron cryomicroscopy, is a form of transmission electron microscopy (TEM) where the sample is studied at cryogenic temperatures (generally liquid-nitrogen temperatures). Cryo<span>-EM is gaining popularity in structural biology.

I hope my answer has come to your help. God bless and have a nice day ahead!
</span>
7 0
2 years ago
Read 2 more answers
Harry had been learning about joints in one of his classes at school. On the way to the emergency room he tried to recall what t
ipn [44]

Answer:

The correct answer is -

1. hyaline cartilage

2.  fibrocartilage

3. hyaline cartilage

Explanation:

1. The hyaline cartilage covers the articular cartilage of the synovial joint that is translucent or clear as glass-like cartilage that has a firm consistency and a high amount of collagen.

2. A symphysis is an amphiarthrotic joint which is a fibrocartilagenous joint that joins with the adjacent bone. This is a very tough or strong tissue.

3. The growth plate of the long bone or epiphyseal plates are examples of synchondrosis,which is a hyaline cartilage composed tissue.

3 0
2 years ago
A student investigated whether ants dig more tunnels in the light or in the dark. She thought that ants used the filtered light
allsm [11]

Answer:

Please see below

Explanation:

  1. Source of light, measuring tool (the string and ruler), ant food, ant farms
  2. Whether or not the tunnels created by ants differ in length depending on the amount of light available
  3. More tunnels are dug by ants during the daylight hours
  4. The hypotheses will probably come out to be true since ants are usually hiding away from predators during the night
  5. The presence of light
  6. The length of a particular tunnel
  7. Perform a trial under normal conditions (room light)
  8. Inaccuracy or inconsistency in measurements
6 0
2 years ago
You sprint as hard as you can until you physically can’t run anymore. Describe the contributions of as many systems as you can t
tamaranim1 [39]

When you are running at high intensity many body systems are being influenced by running and providing some responses in your body.

Running stimulates the cardio respiratory system, making your heart work harder by pumping a large amount of blood into your body, the blood flow starts to be fast and to compensate for this effort you will have to breathe more, taking more oxygen for your organs and tissues.

The muscular and bone systems are stimulated and trained providing greater resistance and strength for your muscles and lower bones.

During the run, the urinary system is also affected, because running is able to improve kidney function, allowing the expulsion of toxic substances from your body to be done more efficiently.

Finally, running stimulates the endocrine system by causing it to release hormones of well-being and relaxation that help you rest and feel good after running.

5 0
2 years ago
​chemical secretions from ____ attack some worm parasites in the body.
tamaranim1 [39]
The correct answer is thrombocytes.

Thrombocytes sometimes called blood platelets are an important compound of the blood. Their main role is to repair damage and prevent excessive damage when an injury occurs. Thee platelets do this by forming blood clots at the site of the injury. Recent studies have shown that these structures also have a role in the defense against parasites.
6 0
2 years ago
Read 2 more answers
Other questions:
  • Maria is concerned because she has been exposed to a small amount of radiation during an X-ray. What is her doctor most likely t
    10·2 answers
  • The most important factor affecting the ph of plasma is the concentration of
    8·1 answer
  • Millions of years ago, the Appalachian Mountains were towering, craggy mountains. Describe the processes that resulted in the lo
    5·2 answers
  • The subshell designations follow the alphabet after f. what is the first shell in which an h orbital would be allowed?
    14·1 answer
  • Pleaseee help!!! Q: A man weighing 980 n on earth weighs only 163 n on the moon. His mass on the moon is ___ kg
    13·2 answers
  • To keep the humeral head centered within the glenoidal cavity the rotator cuff muscles must be __________. a) located posteriorl
    15·1 answer
  • The events listed below generally take place during meiosis.I. Synapsis occurs. II. Crossing-over is completed. III. Condensatio
    15·1 answer
  • Which statements accurately describe how fructose metabolism in the liver differs from glucose metabolism?
    14·1 answer
  • The first sphincter encountered in the alimentary canal is the: The first sphincter encountered in the alimentary canal is the:
    9·1 answer
  • Loss of biodiversity matters not only with regard to mammals or other vertebrates, but also microbes. What statement below would
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!