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Nataly_w [17]
3 years ago
12

Which statement is true about oxygen and nutrient levels of rivers? TIMED TEST

Biology
1 answer:
spayn [35]3 years ago
5 0

Answer:

fast moving mountain streams which flow over rocks and waterfalls are high in oxygen due to the amount of surface area of the water that is exposed to the air.

Fast moving mountain streams are high in nutrients. Organisms have adaptations to hold on in fast moving water, resulting in a large diversity organism.

Slow moving flood plain rivers are high in oxygen due to the amount of surface area of the water that is exposed to the air.

Slow moving flood plain rivers are low in nutrients. These rivers move too slow for plant growth and other organisms to survive.

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Which scenario describes an interaction between two of Earth's spheres?
NARA [144]

Answer: The options are not given, here are the options.

Water flows from a stream to a lake.

Gravity moves rocks to another location.

Lions use energy to catch other animals for food.

Bears dig big holes in the ground to protect their young.

The correct one is Gravity move rock to another location.

Explanation:

The Earth spheres consist of the biosphere which is the living components, Hydrosphere (water), geosphere( rocks) and the atmosphere( gases). The Earth's spheres closely connected that a change in one sphere can result in change in another sphere.

For example, birds fly through the atmosphere, water(Hydrosphere) flow through the soil (lithosphere)

4 0
3 years ago
, which in
Nadya [2.5K]

Answer:

temperature

pH

hope this helps

3 0
3 years ago
Pancreatic amylase is a digestive enzyme that digests starch in the small intestine. pancreatic amylase's optimum pH is slightly
Rainbow [258]

Answer:

Tube 3

Explanation:

Pancreatic amylase's optimum pH is basic, NaHCO3 is a base so it will provide the optimum pH for the enzyme to catalyse the breakdown of starch.

In tube 1 there will not be the breakdown of starch as there simply isn't any enzyme to break it down.

In Tube 2, the enzyme pancreatic amylase will most probably become denatured (loss of shape), as HCl is acidic which causes it to lose shape causing a change in the active site and will never be able to catalyse the breakdown of starch.

Hope this helps :)

4 0
2 years ago
Compare and contrast baby suggs before and after sethe's arrival at 124
Ann [662]
<span>Initially, Baby Suggs was transformed into a kind of holy woman for the black community of Cincinatti. This was when she experienced freedom and realized the meaning of being alive. However, with Sethe's tragedy, Baby Suggs felt broken, and later on, spent her last days bed-ridden and in gloom. </span>
6 0
3 years ago
After an investigation, Kuri determines that her hypothesis was wrong. What is the best thing for Kuri to do next?
Artist 52 [7]

Write a new hypothesis and conduct new experiments to explore the matter. Thus, option "B" is correct.

<h3 /><h3>What is the Hypothesis?</h3>

Hypothesis

The formulation of hypotheses is one of the key steps in the scientific method.

Hypotheses are usually tested using experiments and are usually accepted or rejected depending on the outcome of the experiments.

If a hypothesis is rejected, it does not mean that the entire subject is abandoned. Rather, new hypotheses may be formed and experiments conducted to further explore the subject.

More hypotheses can be found here:

brainly.com/question/23056080

#SPJ1

5 0
1 year ago
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