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Where does the world's supply of oxygen mostly come from?
The majority of the world's oxygen supply comes from phytoplankton in the oceans, which produce about 50-85% of the Earth's oxygen. Land-based plants, such as trees and shrubs, also contribute a significant portion through the process of photosynthesis.
What Continent produce the most oxygen?
The Amazon Rainforest in South America produces the most oxygen in the world, contributing a significant portion of the Earth's oxygen supply.
Can thermal pollution reduce the oxygen supply in an aquatic ecosystem?
Yes, thermal pollution can reduce the oxygen supply in an aquatic ecosystem. When water temperatures increase, the solubility of oxygen decreases, resulting in lower oxygen levels in the water. This can have harmful effects on aquatic organisms that depend on oxygen to survive, leading to decreased biodiversity and potentially causing fish kills.
What activity would best keep the world's oxygen supply from decreasing?
Planting more trees and preserving existing forests is essential to maintaining and increasing the world's oxygen supply. Trees absorb carbon dioxide and release oxygen through photosynthesis, making them crucial in combating the decrease of oxygen levels in the atmosphere. Conservation efforts to protect natural habitats and reduce deforestation are also important in sustaining oxygen production.
Will the Earth run out of oxygen in the future?
No, the Earth will not run out of oxygen in the future. Oxygen is constantly being produced by plants through photosynthesis, ensuring a continuous supply for living organisms.
Does cardiac muscle have more mitochondria and depend less on a continual supply of oxygen than does skeletal muscle?
no
Why do your brain lack of oxygen?
reduced blood supply to brain.it may be due to obstruction of arteries which supply brain,thrombus formation,reduced cardiac output...............
Cardiac muscle tissue is supplied with nutrients and oxygen by which part of the human transport system?
Cardiac muscle tissue is supplied with nutrients and oxygen by the coronary arteries, which branch off the aorta and supply blood to the heart muscle. These arteries ensure adequate delivery of oxygen and nutrients to the heart for proper function.
What is a description of cardiac tamponade?
The condition keeps the rest of the body from getting the necessary supply of oxygen and can cause dangerously low blood pressure.
When does cardiac cell die when oxygen is cut off?
Cardiac cells can start to die within 20-30 minutes when oxygen supply is cut off. Prolonged oxygen deprivation can lead to irreversible damage and cell death in the heart muscle, which can result in a heart attack. This underscores the importance of timely intervention to restore blood flow and oxygen to the heart.
Do muscles need oxygen to work?
Yes, cardiac muscles cells have a very high oxygen demand, since they are constantly in motion. This is why any shortage of oxygen causes angina, or if the oxygen deprivation is long enough, it causes death of the muscle cells - what is commonly called a heart attack.
Which blood vessels supplies the heart with its own blood supply?
Re-oxygenated blood flows into the heart via the pulmonary vein. However, these blood will leave the heart, and supply oxygen to the body. The heart has its own circulation; the cardiac arteries (supply the oxygenated blood)and the cardiac veins (drain the collected venous blood).
Can Low hemoglobin and stroke?
Yes. A heart attack is when the cardiac muscle dies due to loosing its oxygen supply. Haemoglobin carries oxygen around the body and if it is continually dropping it will at some point reach a critical stage where oxygen cannot be supplied to the myocardium and it will infarct.
What is blood supply of cardiac muscle?
Coronary arteries
If cardiac muscle is deprived of its normal blood supply damage would primarily result from?
loss of oxygen.... the mitochondria in the cardiac muscle need it to continue to produce energy to keep the muscles contractiong without it the muscles seize from lactic acidosis a byproduct anaerobic respiration.
What is exertional syncope?
I think that exertional syncope is a kind of cardiac syncope. During exertion the patient with heart disease would be unable to supply enough oxygen to the brain, causing dizziness.
What will happen if your cardiac muscles contracts without resting?
if there z the continuos contraction then it leads to cardiac arrest.by which the blood supply also gets ceases and it leads to decreased transport of oxygen .which finally leads to apnoea r dysnoea.sometimes there occurs also a condition of hypertension at once.
