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Biodiversity and ecosystems
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_____________ adaptations are actions that organisms carry out that benefit them in some way
behavioural
___________ adaptations are the physical characteristics of living things that enable them to carry out a specific activity.
structural
__________ is the adjustment of living organisms to the conditions of the environment in which they live
Adaptation
Give an example of a cause of the loss of biodiversity.
overhunting, overharvesting, overfishing and excessive logging
___________ of a species occurs when the last individual of that species dies.
extinction
Our excessive use and poor management of natural resources are causing a ________ of biodiversity in many regions of the Earth.
loss
True or False. The loss of a single species can alter the balance of an ecosystem.
TRUE
Give an example of a resource that biodiversity provides.
food, medicine, raw materials, sites for leisure activities and energy
___________ is the variety of species that live or have lived on Earth.
Biodiversity
As long as there are no sudden, unusual changes to the ecosystem, it maintains this ____________-.
balance
What type of ecosystem has a biotope covered by water and is determined by the dynamics of the water and its salinity?
Aquatic
What type of ecosystem has a biotope that is not covered by water?
Terrestrial
___________ is a interspecific relationship where one species lives off another (the host). One organism profits while the other is harmed.
Parasitism.
____________ is a interspecific relationship where an organism captures and kills another prey food.
predation
_________ are organisms that obtain their nutrients by decomposing dead organisms (example: bacteria and fungi)
decomposers
___________ are organisms that eat other living things
consumers
_____________ are organisms, such as algae or plants, that can produce their own food.
producers
Give one type of feeding relationships in the ecosystem.
producers, consumers and decomposers
The collection of individuals of a same species that live in a biotope is called a ____________.
population
____________ components are living things in every ecosystem.
Biotic
Light, _______ and temperature are some of the main ABIOTIC components that have an impact on the biology of living things
water
____________ components are the physical environment and physical and chemical characteristcs.
Abiotic
biotope + biocoensis + ___________ = an ecosytem
relationships
What are the two types of components Ecosystems have?
Abiotic and Biotic


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