Please enable JavaScript.
Coggle requires JavaScript to display documents.
Ecosystem: contains all the nonliving and living parts of the environment…
Ecosystem:
contains all the nonliving and living parts of the environment in a given area
Biotic factors:
is the living or once-living parts of an ecosystem
example: humans and animals
Populations:
is all the organisms of the same species that live in the same area at the same time
Habitat:
is the place within an ecosystem that provides the biotic and abiotic factors an organism need to survive and reproduce.
-example: The plant leaves provide a place for adult dragonflies to lay eggs
Abiotic factors:
is the nonliving parts of an ecosystem
-example : soil , water
Niche:
It is the way a species interacts with abiotic and biotic factors to obtain food, find shelter and fulfill other needs
Communities:
it is all the populations living in an ecosystem at the same time
Predator:
is an organism that hunts and kills other organisms for food
Prey:
is an organism caught and eaten by a predator
Predation:
is the act of predator feeding on its prey
Symbiosis:
is a close, long-term relationship between two species that usually involves an exchange of food or energy
Mutualism:
is type of symbiosis where both species benefit from the relationship
-example: when the bird cleans the crocodile teeth , the crocodile is getting his teeth cleaned and the bird is getting food
Commensalism: is a type of symbiosis where one species benefit from the relationship and the other species is neither harmed nor benefited -example: when the bird put its nest on the tree , the bird has a place to live and the tree isnt getting harmed nor benefited
Parasitism : is a type of symbiosis where one species benefits and the other one is harmed -example: when the mosquito bite humans , the mosquito(the parasite) sucks the blood so it benefits and the human (the host) is getting harmed
Competition :
describes interactions between two or more organisms that need the same resource at the same time
Population density :
is the size of a population compared to the amount of space available
Carrying capacity :
it is the largest number of individuals of one species that an ecosystem can support over time
Extinct:
If all members of a population die or move away from an area
Cause :
individuals live closer together
Effect :
-increased competition
easier transmission of disease
Population greater that carrying capacity
area becomes overpopulated ; individuals move away or die out
good growing conditions or the disappearance of competing species
carrying capacity greater that population
Anoud alhamidi 8c