Episode 02
Episode 02
INTERACTIONS AMONGINTERACTIONS AMONG
LIVING THINGSLIVING THINGS
OBJECTIVE : In this unit we will study OBJECTIVE : In this unit we will study the different relationships between the different relationships between
organisms living together. Then we will organisms living together. Then we will also be able to identify the needs that also be able to identify the needs that
must be met by an organism’s must be met by an organism’s surroundings, biotic and abiotic parts of a surroundings, biotic and abiotic parts of a
habitat, and describe the levels of habitat, and describe the levels of organizatoin within an ecosystem.organizatoin within an ecosystem.
Symbiosis
Competition
Predation
Competition is the struggle between organisms to live in
an area with limited resources
O
What is a Predator ?
who Kills another for Food
What is a Prey ?
the Food for predators
Predator Adaptations: Adaptations that help them to catch the preys. For example: Speed, Sharp teeth, Toxins, Claws, Camouflage, etc.
Prey Adaptations: Adaptations help preys to escape from predators. For example: Speed, Change color, Spines, Toxins, Shields, etc.
Prey adaptations
Prey adaptations
False Coloring
Prey adaptations
Prey adaptations
W A R N I N G
COLORING
M O R T A L
Predator adaptations
Predator adaptations
Mutualism: Both species benefit
Parasitism: One specie benefit while the other one is harmed.
Commensalism: One specie benefit but the other one is not harmed
MUTUALISM
MUTUALISM
Parasites
• They live “ON” or “INSIDE” another organism ( called Host ) and harming it
ParasitismParasitism
Anemones tentacles are equipped with cells like small harpoons and contain a poison sufficient to paralyze or kill other fish or predators, But the anemone treats the Clownfish as part of itself and does not sting it, but have no benefit from him.
Clownfishes have a close relationship with sea anemones