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Survival In Deep Oceans Test
Survival In Deep Oceans Test
Survival In Deep Oceans Test
Survival In Deep Oceans Test
Survival In Deep Oceans Test
Survival In Deep Oceans Test
Survival In Deep Oceans Test
Survival In Deep Oceans Test
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Survival In Deep Oceans Test

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  • 1. Survival in Deep Oceans Extreme Environments By: Kelsey Draeger Period 3 Bio II
  • 2. Why are Deep Oceans an Extreme Environment?
    • The lack of light, pressure, temperature, oxygen and food create barriers to the sea life that need to see, feel, feed, reproduce, move, and avoid being eaten by predators.
    • Oceans cover around 71% of the earth and the majority of the ocean is still undiscovered.
    • Extreme cold temperatures of the water may cause hypothermia.
    • Extreme pressure may cause Decompression Sickness, which may lead to death.
  • 3. What are the maximum limits that the human body can endure the deep ocean environment?
    • Only an experienced snorkeler can dive 30 meters or more for short periods of time. Any more time and more amounts of oxygen is needed.
    • At one meter below the surface of the water the net force on a human’s chest (from the pressure difference between inside and outside the lungs) is around 100 lbs!
    • Breathing underwater with even a small amount of pressure is near impossible; the human muscles can not handle it.
  • 4. What are some of the body systems that would be affected by this environment?
    • *Respiratory System
    • *Circulatory System
    • *Muscular System
    • The high pressure in the lungs can push air into the surrounding tissue causing painful air bubbles.
    • This may cause a fatal embolism in a blood vessel.
    • Decompression Sickness (DCS) may also occur, when the external pressure drops too quickly, causing the nitrogen that is normally absorbed in the blood to literally bubble out.
  • 5. Examples of clothes and equipment necessary for deep ocean survival:
    • Fiber optics that use LED light and low light cameras.
    • To avoid Decompression Sickness (DCS), the use of Nitrox is needed, which is a nitrogen/oxygen mixture that is higher in oxygen content than normal air.
    • Submarine that can withstand mass
    • amounts of pressure and provide a
    • constant normal temperature for
    • humans on the inside.
  • 6. Human adaptations needed for deep ocean survival and to maintain homeostasis:
    • Adapt large eyes to capture what little light exists. The only light is produced by a chemical reaction in the body that creates a low level light, or bioluminescence.
    • Strong sense of smell because of the lack of light.
    • Develop bodies with no excess cavities that would collapse under extreme pressure.
    • Flesh and bones need to be soft and flabby to withstand pressure.
  • 7.
    • Ability to withstand little oxygen.
    • Feed on a diet of detritus, and have expandable stomachs.
    • Camouflage of transparent, black, or even red in color.
  • 8. Is it possible for humans to survive in the deep ocean environment?
    • No. There is too much pressure for the human skeletal system to handle and extreme lack of oxygen and light .
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