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gtnhenbr [62]
2 years ago
8

What is a keystone species? Why are keystone species important? Give and example.

Biology
1 answer:
harkovskaia [24]2 years ago
3 0

Answer:Key stone

Explanation:

Keystone species hold together the complex web of relationships in an ecosystem. They can be animals, plants or microorganisms. Examples of keystone species include starfish, sea otters, wolves and elephants.

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Describe the types of lithospheric plate collisions that build<br> mountains.
nevsk [136]

Answer:

When plates collide or undergo subduction (that is – ride one over another), the plates tend to buckle and fold, forming mountains. Most of the major continental mountain ranges are associated with thrusting and folding or orogenesis. Examples are the Jura and the Zagros mountains.

Explanation:

hope this helps <3

4 0
2 years ago
Nuclear energy use can negatively impact water quality. Please select the best answer from the choices provided T F
MAXImum [283]

The statement is - True.

The production of the nuclear energy by the nuclear reactors requires lot of water. The water's role is to constantly keep cool the reactors because if they overheat there can be a disaster of big proportions.

Because of the heating up of the water the water changes its properties slightly. Those changes have big environmental impact, easily seen in the local flora and fauna in close proximity to the nuclear reactors. There is way to big of a percentage of bad mutations among the flora and fauna where the water is released from the nuclear reactors, where very often there's animals with either more or less extremities, two heads, weird growth and shape of the plants etc.

5 0
3 years ago
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Based on the information in the graph, which blood type is most likely to be in shortest supply during an emergency?
Maksim231197 [3]
While there is no graph provided and I cannot find the graph online, I will base my answer through theory. 

In theory, the most common blood type is O+, followed by A+, then B+, then AB+. Rh negative blood is deemed to be rare. While the most common blood type is O+, the same blood type is also called the "universal donor" as a type O+ blood has no antigens attached in red blood cells therefore the probability of adverse reactions (i.e. hemolytic reactions) when transfused to other blood types are close to nil. In an emergency situation, wherein there is not enough time to do proper crossmatching, blood type O+ can be used therefore supplies of blood type O+ are easily depleted.
5 0
3 years ago
Read 2 more answers
True or False: The red bone marrow produces blood cells.
saw5 [17]

Answer:

True

Explanation:

6 0
2 years ago
Read 2 more answers
5.
almond37 [142]
Improve health
False
Using genetic principles to calculate
8 0
3 years ago
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