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INTERRELATIONSHIPS 20 AINHOA, Los-seres-vivos-y-su-alimentacion-GALERIA…
INTERRELATIONSHIPS 20 AINHOA
Organisms
What is an organism?
An organismis a member of species
Species
What is species?
Only members of the same species can successfully reproduce
For example: Orange trees, lynxes, whales, wasps and vultures are different species
A species is a group of living things with common characteristics
Nutrition in animals
Omnivores: They eat plants and animals (wild board)
Scavengers: They eat dead animals (Vultures)
Carnivores: They eat other animals
Decomposers: They eat decaying plant and animal matter (pillbug)
Hervivbore: They eat grass (dears)
Producer: Produce their own food. Grasses and algae (plants)
Food chain
What is a food chain? A food chain is to show how living things feed off other living things in a ecosystem. We can draw them in a row and link them with arrows.
Food chains , webs and ecosystem
Secondary consumer
Primary consumer
Sometimes Third consumer
Producer
Decomposers
Relationships among living things (different interaction)
Competition
It is between different species that have the same needs (squirrell and dormice
Mutualism
Is between 2 different species when both benefit (egyptian plovers and crocodiles teeth)
Symbiosis
Is the interaction between different organisms living in close association for a long time (algae and fungus)
Commensalis
It is between 2 species when 1 benefits and the other remains unaffected (birds and trees)
Predation
Depredator hunts and kills its prey for food (otter)
Parasitsm
It is between 2 species when one benefits (parasite) while the other suffers (dogs and flea)
