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
andrew-mc [135]
2 years ago
9

Most fish need a minimum of ________ parts per million of dissolved oxygen in seawater to survive for long periods.

Biology
1 answer:
Andrei [34K]2 years ago
5 0

Most fish need a minimum of 4 parts per million of dissolved oxygen in seawater to survive for long periods.

<h3>How can you mesure dissolved oxygen in water?</h3>

Dissolved oxygen (DO) is estimated utilizing a disintegrated oxygen meter or DO meter. The best strategy is to take the estimation in the field simultaneously every day, in light of the fact that DO fixations can shift all through a 24 hour time span.

Testing disintegrated oxygen (DO) in water is either estimated by means of substance examination, for example, a titrimetric technique, electroanalytical utilizing galvanic and polarographic tests, optical broke up oxygen, and colorimetric strategies.

In any case, present day procedures basically utilize electrochemical or optical sensor techniques.

The Winkler Method is a procedure used to quantify broke up oxygen in freshwater frameworks. Disintegrated oxygen is utilized as a mark of the wellbeing of a water body, where higher broke up oxygen fixations are corresponded with high efficiency and little contamination.

Disintegration of natural material,Bacterial oxidation of dead natural material consumes oxygen. This likewise makes sense of the relating expansion in supplement levels underneath the epipelagic zone.

For more information about Dissolved oxygen, refer the following link:

brainly.com/question/26113345

#SPJ4

You might be interested in
What do checkpoints do in the cell cycle?
denpristay [2]

Answer: Checkpoints in the cell cycle A checkpoint is a moment in the eukaryotic cell cycle where the cell considers internal and external inputs before deciding whether or not to divide. There are other checkpoints, but the following are the three most important: At the G/S changeover, there is a G checkpoint.

Explanation:

knowledge!

5 0
3 years ago
What membrane protects the brain and spinal cord that circulates cerebral spinal fluid (csf) g?
nata0808 [166]
Meninges are membranes that cover and protect the brain and spinal cord.
There are three layers of meninges: Dura mater (closest to the bone), Arachnoid loosely around the brain, Pia mater is closely attached to the brain and spinal cord surface.
5 0
4 years ago
Allen pours water into a graduated cylinder. He notices that the surface of the water is curved, as shown below.
Slav-nsk [51]

Answer:

When water is added to a graduated cylinder, having a surface where the sides of the water look higher than the center means that the curved surface is a concave meniscus which has formed because of surface tension (Choice C).

Explanation:

A meniscus is simply the curvature that the surface of a liquid acquires when it is in a container, such as a graduated cylinder. It is concave when there is attraction between molecules -water and glass- or it can be convex when both surfaces are repelled.

<u>Water is a polar molecule</u>, with the capacity to adhere to the surfaces it comes into contact with. This characteristic causes it to form a concave meniscus, as the outermost molecules adhere to the glass surface, while the surface tension of the water attracts the molecules from the centre downwards, causing the concavity.

Learn more:

Measuring with a graduated cylinder brainly.com/question/4070509

4 0
3 years ago
Read 2 more answers
Is the moon moving away/ moving towards the earth which ?
tia_tia [17]

Answer:

it moves away

Explanation:

hope this helps

7 0
3 years ago
Read 2 more answers
Why is an electron microscope unsuitable to study living cells?
kari74 [83]
You can't use it because the living cells won't be able to handle the high vacuum conditions.
Hope this helped ;)
8 0
3 years ago
Other questions:
  • Which level of organization in the classification system is directly above the phylum level? Class Domain Kingdom Order
    15·2 answers
  • 7. If the atomic number of an element is 6 and its mass number is 14, how many
    6·1 answer
  • Active transport real life comparison???
    5·1 answer
  • Which of the following servesbas an electron carrier in cellular respiration?
    5·1 answer
  • Which of the following types of rocks are likely to disintegrate by weathering and erosion?
    12·2 answers
  • During what step the of Central Dogma is Gene Therapy used?
    14·1 answer
  • What chain of events will most likely occur to Iceland in the future?
    5·2 answers
  • Place the parts of the circulatory system in the correct order to describe the flow of oxygenated and deoxygenated blood in the
    13·2 answers
  • Enzymes have which of the following characteristics?
    6·1 answer
  • Rename 1/4 and 1/8 using the least common denominator
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!