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alexgriva [62]
3 years ago
14

Elk herds in Yellowstone National Park are herbivores that browse on the available vegetation. Which factor is critical to ensur

ing stability in this ecosystem?
Biology
2 answers:
DaniilM [7]3 years ago
7 0

Answer:

The presence of predators, such as grey wolves, is required to keep the elk population in check. If the population of elk is allowed to grow unchecked, the vegetation would eventually start disappearing, followed by the disappearance of the elk.

Explanation:

morpeh [17]3 years ago
3 0
Elk obviously need the vegetation they eat to be abundant and unlike believed in the past they need to be prayed on by predators. Without predators, the elk overpopulate and eat all of the plants and cause other animals like beavers to die off. 
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Help me pleaseeeee!!
DochEvi [55]

Answer:

POLLUTANT, SOURCE AND IMPACT

Carbon Monoxide

SOURCE:- carbon monoxide main sources are from our homes, eg; wood stoves and fire place, generators, gas stoves, kerosene heaters, leaking chimneys, tobacco smokes etc

IMPACT:- carbon monoxide can cause organ failure as it reduces the amount of oxygen the hemoglobin been carried in the red blood cells to this organs in our body.

Carbon dioxide

SOURCE:- carbon dioxide can be from both human and natural source. Example of the sources includes; natural source ( ocean release, decomposition and respiration), human activities ( burning of coal, oil and natural gas, cement production etc)

IMPACT:- carbon dioxide causes difficulties in breathing as it displaces oxygen in the air.

It also increase the greenhouse effect (global warming) as more heat energy gets trapped by the atmosphere causing the planet to become warmer.

Sulphur dioxide

SOURCE:- sulphur dioxide mainly occur due to human activities such as fossil fuel combustion at industrial facilities, in ships etc.

IMPACT:- Sulphur oxide has been linked to many health effect and diseases such as cardiovascular diseases. It also causes respiratory problems, asphlegm and asthma attacks, irritation of lungs, throat and nose as well.

Nitrogen oxides

SOURCES:- nitrogen oxides also comes from human activities such as; combustion of fossil fuel, making of nitric acid, refining metals as well as petrols, explosive, food manufacturing etc.

IMPACT:- Nitrogen oxides has also been linked to many respiratory health issues such as bronchitis and wheezing. It causes the lining of the lungs to inflame there by reduce the immunity of the lungs to respiratory diseases.

Methane

SOURCE:- methane can be from either natural or human activities. The natural source includes; food digestion by cattles, decay of organic materials. Human activities such as waste management, rice production, oil and gas production etc.

IMPACT:- Methane is considered a green house gas like carbon dioxide, it contributes to the trapping of heat energy in the atmosphere which causes global warming. It is also linked to serious health issues such cardiovascular, respiratory and neurological problems.

Particulates

SOURCE:- particulates are fine tiny particles of matter found in the air, it might be in solid or liquid form. Example; dust, smoke, fumes etc. This particles can suspended in the air for an extended periods of time.

IMPACT:- exposure to particulates can cause variety of respiratory health problems such as difficulties in breathing, coughing, lungs and heart problem etc.

7 0
3 years ago
If oxygen is not present which process occurs after glycolysis in animal cells
Dovator [93]
If oxygen is not present, glycolysis would be followed by fermentation
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4 years ago
What structure is missing in a animal cells but present in almost all other all types
Anarel [89]
The cell wall because of the fact it is present in the plant cell and not in the animal cell
4 0
3 years ago
An individual is the genotype Gg for a height trait. This individual is ________________ for that height trait.
Vladimir79 [104]

Answer:

Heterozygous

Explanation:

4 0
3 years ago
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What tiny bumps in the dermis cause the ridges that make up our fingerprints?
Natalka [10]

Answer:

22

Explanation:

7 0
2 years ago
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