The Biotic Environment
Learning Objectives
Briefly describe Biotic environment.
Know what are Abiotic factors.
Differentiate and Define Herbivores, Carnivores, Omnivores and
Scavengers.
Know what is meant by predation.
Understand Mutualism.
Introduction
Biotic environment consist of all living
things in an ecosystem
Biotic components are the living things
in an ecosystem.
Abiotic factors are inorganic things,
which affect the living creatures of an
ecosystem.
Symbiotic relationship
relationship between two kinds of organisms that lasts over a period of time.
The word symbiosis can be broken down into two parts to determine its meaning.
sym means together
bio means life
There are three types of
symbiotic relationship.
Parasitism
Mutualism
Commensalism
Herbivores, Omnivores, Carnivores & Scavengers
A herbivore is an animal that feeds
on plants
An omnivore is a kind of animal that
eats animals and plants.
A carnivore is an animal that eats
other animals.
A scavenger
is animal that feeds on dead animals.
Predation
Predation is a biological
interaction where a predator
feeds on its prey
Prey is an organism which is
attacked by a predator
Predator is an organism that
gets its food from the preyPrey Predator
Mutualism
Mutualism is an relationship
between organisms of two
different kind in which each is
benefited.
Type of symbiotic relationship.
Mutually beneficial .
Neutralism & Competition Relationship
Neutralism Relationship is a relationship which both sides are not
effected.
Competition Relationship is a relationship in which both sides are
effected negatively.
Now Try this
A lion stalks a herd of antelope wading in a pond. A flock of water birds on the shore become startled by the sound of the lion’s approach and fly away with a great deal of noise. The bird’s sudden departure gives warning to the antelope, and they are also able to escape safely. What type of relationship exists between the birds and the antelope?
a. Competition
b. Mutualism
c. Commensalism
d. Parasitism
Practice Time
A lichen is a combination of
two organisms, an alga and a
fungus. The fungus gets its
food from the alga while the
alga gets water from the
fungus. This is an example of
which relationship?
a. Competition
b. Mutualism
c. Parasitism
d. Commensalism
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