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
valentina_108 [34]
3 years ago
10

Students are testing the james river for dissolved-oxygen levels. They test in the blue ridge mountains,at the rivers source,and

in Richmond Virginia,a highly populated area. What is the independent variable in this experiment?
Biology
2 answers:
iogann1982 [59]3 years ago
5 0

Answer: 21 holes

Explanation:

Yes

kykrilka [37]3 years ago
3 0
The oxygen levels I think
You might be interested in
Which of these has the largest brain size and intelligence
WARRIOR [948]
More info to answer plz
5 0
3 years ago
Read 2 more answers
If you have an eraser with a mass of 20g and volume of 10cm^3, what is the density
TEA [102]
Feel free to ask if you still don't understand

7 0
3 years ago
Question 22 (Essay Worth 3 points) (02.01 HC) A prediction of the theory of Plate Tectonics is that new volcanoes can form at th
Darina [25.2K]

Answer:

What would be the expected result of the experiment?

For the drawing of the map part, the scientific will find that effectively, a very large number of volcanoes are located near the meeting points of tectonic plates. The volcanoes that aren't now at the edge of the plate were most probably at the moment of their formation, and were moved away by the movement of the plate.

But I doubt the scientist would be able to identify many new volcanoes, because the creation of a volcano isn't something happening overnight.

How would you interpret the results if the scientist observes no new volcanic activity?

I would say that does NOT invalidate the theory because the observation period is extremely short.  10 years is an insignificant amount of time geologically speaking... the study would have to be conducted over at least 1,000 years to maybe have some results at all.   Just imagine how many volcanoes there would be if a new one was created every 10 years along the side of a tectonic plate.

6 0
3 years ago
The buccinator muscle __________. The buccinator muscle __________. purses the lips raises the corners of the mouth compresses t
Anuta_ua [19.1K]

Answer:

compresses the cheeks

5 0
4 years ago
The sympathetic nervous system controls all _________ responses of the body.
White raven [17]
I believe the correct answer from the choices listed above is option C.The sympathetic nervous system controls all  emergency  responses of the body. <span>The SNS triggers </span>what<span> is commonly known as the "fight or flight" </span><span>response. Hope this answers the question.</span>
5 0
4 years ago
Other questions:
  • How does DNA differ from RNA?
    8·1 answer
  • Cross a homozygous dominant individual for brown hair with an individual who is blond hair . remember the starting are the paren
    10·1 answer
  • During the process of translation, which component has the responsibility of ensuring that the tRNA is correctly charged, i.e. c
    12·1 answer
  • List some characteristics of each type of seismic wave. Include what type of material (solids, liquids, or both) each can travel
    14·1 answer
  • How are asbentos and radon different
    11·2 answers
  • PLS HELP!!!
    5·1 answer
  • How do mutations lead to genetic diversity?
    8·1 answer
  • The movement of water across a membrane does not require a concentration gradient.
    7·2 answers
  • What is the importance of blood sugar regulations​ ( give four at least)
    5·1 answer
  • How are controls used for medicine?<br> Three major approaches used by scienctists?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!