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Scientists can study both birds and aquatic animals by safely catching them in fine mesh nets. When they are done, they often tag the animals then release them back into the ecosystem. This is called:

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Carbon dioxide is one of the gases that are harmful to the environment.

The increased release of carbon dioxide into the atmosphere causes climate change.

What name do scientists use to describe gases such as carbon dioxide?

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Which habitat exhibits the greatest biodiversity?

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Which of the following is the definition of biodiversity.

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What are invasive species?

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There are 200 different species in an area what type of biodiversity is this?

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Sequence of biotic changes that restore/rebuild a damaged community

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The ability of an ecosystem to recover after a disturbance

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What type of threat to biodiversity does the image show?

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What are ways in which humans can directly help to protect and maintain ecosystems?

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What is ecosystem diversity...??..

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Which of the following are methods that restore land damaged by humans?

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An extremely cold dry biome.

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An ecosystem has 150 organisms of 15 different species. What is the biodiversity index of this ecosystem?

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A group of ecosystems that share similar climates and typical organisms

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 A biodiversity index of 0.9 shows:

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Scientists sometimes mark out squares from 1m2 to 20m2, then count all the different individuals and species within these squares. They can do many squares, then take an average to estimate biodiversity. This is called:

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Which of the following is NOT related to biodiversity?

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What do pollution, habitat destruction, overexploitation, and climate change have in common?

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Scientists use a method to count individuals and species in terrestrial and aquatic environments, where they stretch out a line with marked intervals. At each interval, they count the number of individuals and species. This is called:

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Scientists can study large herds of migrating land animals, or large aquatic animals like whales, by taking pictures from airplanes, helicopters or drones. This can also be used to measure biodiversity of trees in a forest, but is not useful for small animals or insects. This is called:

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To study the biodiversity of insects in trees, scientists send clouds of insecticide up into the tree tops, then identify, count and study the dead insects that fall down. This is called:

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Which of the following are threats to biodiversity?

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....................  is the overuse of plant and animal species that causes a loss of species and populations putting them in danger of becoming extinct.

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When an ecosystem is constantly changing, but always staying close to a stable position, this is called:

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