relation between biotic component to feeding (my work) wide
TRANSCRIPT
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The Interaction
Between Biotic
Component in Relation
to Feeding
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Symbiosis in Plants and Animals
• Symbiosis means “living together”.
• A relationship between two or more
different species interacting with
each other.
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SYMBIOSIS
Commensalism
Parasitism
Mutualism
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Commensalism• Epiphytes are small
green plants found growing on other plants for space only.
• It do not obtain nutrients but its can make its own food by photosynthesis.
• Has specialized roots to anchor itself firmly.
• E.g- pigeon orchids
- ferns
- mosses
Epiphytes
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Adaptations of pigeon orchid.• It has swollen stem at
its base (false bulb).
• It roots:-
– Has special roots (aerial roots) to absorb moisture from the surrounding.
– Coated with a spongy layer (velamen) : prevents root tissues from drying out.
• Sunken stoma : reduce the lost of water due to evaporation .
oPigeon orchid
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Epizoics
• Epizoics (remora fish) attach themselves to the bodies of these hosts (the shark) for free transport, and feed on leftovers from their hosts’ meals.
• Is an animal commensal attached to another animal (its host).
• examples: Vorticella
(epizoic) and daphnia (host).
Cyclop (host) and vorticella (epizoic).
Barnacles (epizoic) and crab (host).
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Mutualism• Is an interaction between 2 species in which
both organisms benefit.
• Both organisms depend on each other to survive.
o Lichen – combination of a green algae and a fungus
o Green algae- carry out photosynthesis and supplies food and oxygen to fungus.
o Fungus- gives shelter, water, carbon dioxide, and nitrogenous compounds to green algae.
Example of interaction :
Lichen…
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Parasitism• Is a relationship between two organisms in
which one organism (parasite) and the other (the host) is harmed.
o Fleas on the surface of a host’s body…
o A tapeworm which is live in a human body…
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Endoparasites• Parasites that live in another
organisms (host).
• Examples are:
- roundworms
- tapeworms
- flukes
• The host usually loses nutrients to the parasites.
• Adaptations:
– they have specific protection cuticles and produce mucus and anti-enzymes secretion.
–Less nervous system and sense organs.
Ectoparasites• Parasites that live on another
organisms. (host).
• Example are:
:(on animals/human)
- ticks
- lice
- fleas
:(on plants)
- mealy bugs
- aphids (plant lice).
• Adaptations:
–They have sharp mouths for sucking, biting and hooking.
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• A type of interaction where living organisms feed on dead organic matter for food.
• Examples are: mushroom, mucor, bracket fungus, sporangia.
Saprophytism
o Bracket fungus
o Mucor sp. o Saprophytic mushroom
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• Interaction between two organisms which one will hunt and kill the other for food.
Prey-predator
prey
predator
* The prey-predator relationship helps to control the population of different animals in an ecosystem.
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Dynamic equilibriumPrey
increases
Predator increases
Prey decreases
Predator decreases
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THANK YOU
FOR LENDING
YOUR EAR…