Summary: Parasites
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1 Parasites
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What are the four main environments that parasites can inhabit inside the body?
- Skin
- Respiratory tract
Gastrointestinal tract- Blood/tissue
- Skin
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What are examples of benefits of being a parasite in the skin?
- Easy access to host and nutrients
- Temperature stability from hosts skin
- oxygen supply
- Easy access to host and nutrients
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What are some costs of being a parasite in the skin?
- Osmotic balance
- more exposed to environmental changes
- easily removed e.g. Host grooming
- Osmotic balance
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What are some benefits of being a parasite in the respiratory tract?
- Entrance and exit is
relatively simple - Oxygen rich
- Well
protected from environment
- Entrance and exit is
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What are some of the costs of being a parasite in the respiratory tract?
- Blood
defences - Limited food supply
- Blood
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What are some of the benefits of being a parasite in the Gastrointestinal tract?
- Lots of food (nutrients and blood)
- easy access
- Lots of food (nutrients and blood)
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What are some of the costs of being a parasite in the Gastrointestinal tract?
- Extreme pH (acidic)
- anoxic
- Extreme pH (acidic)
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What are some of the benefits of being a parasite in the Blood/tissue?
- Highly regulated with blood and nutrients
- Cysts can go undetected from the host's defense
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What are some of the costs of being a parasite in the blood/tissue?
- Highly exposed to defenses
- Complicated entry and exit
- Highly exposed to defenses
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What is an example of a skin parasite?
Mites, ticks, isopods and flukes
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