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Practice - Living Things - 07

Welcome to our exciting Science Quiz! Today, we are embarking on a thrilling adventure into the world of ecosystems. Prepare yourself to dive into the diversity of life and intricate connections that make our planet so special. Remember, not all answers are as simple as they seem. So, think carefully and let your natural intelligence shine!
1.
What does 'biodiversity' mean?
A type of environment
Variety of life within an ecosystem
A species threatened by extinction
Scientific stuff
Biodiversity refers to the variety of living species that can be found in a particular area—ranging from mammals, birds, and insects to plants, fungi, and bacteria.
2.
What is a 'food chain' in an ecosystem?
A type of organism
A type of ecosystem
A series of organisms each dependent on the next as a source of food
A group of animals that all eat the same thing
A food chain in an ecosystem is a series of organisms in which each organism is eaten by the next one in the chain. Food chains begin with plant-life, and end with animal-life. Some animals eat plants, some animals eat other animals.
3.
What is a 'producer' in an ecosystem?
A hunter
A type of animal
An organism that makes its own food
An organism that eats other organisms
A 'producer' or 'autotroph' is an organism that produces its own food using sunlight (photosynthesis) or chemical energy (chemosynthesis). Most producers are plants, but there are also many other examples like algae or certain types of bacteria.
4.
What is an ecosystem?
A rainforest
A type of animal
All the living things in an area and their environment
A large body of water
An ecosystem includes all living things (plants, animals and organisms) in a given area, interacting with each other, and also with their non-living environments (weather, earth, sun, soil, climate, and atmosphere).
5.
Which is NOT an example of a terrestrial (land-based) ecosystem?
Desert
Grasslands
Forest
Ocean
Ocean is a form of aquatic ecosystem and not terrestrial. Terrestrial ecosystems refer to land-based ecosystems like deserts, grasslands and forests.
6.
In an ecosystem, what is a 'habitat'?
A type of plant
The role of an organism in its environment
An area or environment where an organism lives
A group of the same species living together
A habitat is the place where a particular species lives and grows. It is essentially the environment—at large or small scale—that surrounds (influences and is utilised by) a species population.
7.
What is 'overpopulation' in an ecosystem?
When there are too many predators
When there are not enough plants
When there is too much pollution
When there are too many organisms for the environment to support
Overpopulation, in the context of an ecosystem, refers to a situation where the number of organisms exceeds the carrying capacity of their habitat.
8.
What is a 'consumer' in an ecosystem?
An organism that creates its own food
An animal that does not need to eat
A type of plant
An organism that eats other organisms or organic matter
A 'consumer' (also known as a heterotroph) is an organism that eats other organisms or organic matter because it cannot produce its own food.
9.
What are 'decomposers' in an ecosystem?
Animals that only eat plants
Organisms that break down dead or decaying organisms
Organisms that produce their own food
Animals that only eat meat
Decomposers are organisms that break down dead or decaying organisms, and in doing so, they carry out the natural process of decomposition.
10.
What is a 'niche' in an ecosystem?
A small hole where animals live
A type of animal
The role an organism plays in its environment
A type of plant
In ecology, a niche is a term describing the relational position of a species or population in its ecosystem. This includes what the organism eats, where it lives, or how it interacts with other organisms.
Author:  Graeme Haw

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