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15
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symbiosis - a close, long-term relationship between two different kinds of living things
The clownfish and the sea anemone share a symbiosis because they protect and help each other live.
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15
×
bioluminescence - the production and emission of light by a living organism (like fireflies)
Some animals glow because they have a special ability called bioluminescence.
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baam
Lose 20 points!
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shark
Other team loses 5 points!
Okay!
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gift
Win 25 points!
Okay!
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baam
Lose 15 points!
Oops!
15
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biome - a very large community of plants and animals that lives in a specific region defined by its unique climate, soil, and weather
Only animals that are able to endure the blazing sun and extreme heat with little water can survive in the harsh desert biome.
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15
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biological - relating to life, living organisms, or the natural processes of living things
We learned about the biological needs of a caterpillar, like eating leaves and making a cocoon.
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15
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autobiography - a self-written account of a person's own life story
Charlotte wrote an autobiography to tell her own life story.
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15
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biohazard - a biological substanceâsuch as a virus, bacterium, toxin, or medical wasteâthat poses a threat to human health or the environment
We saw a bright orange biohazard symbol on the door of the hospital laboratory.
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15
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biologist - a scientist who studies living organisms, from tiny cells to large ecosystems, to understand how life works
A marine biologist explained how the coral reefs are dying.
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biodiversity - the variety of different plant and animal species in an environment
The scientist studied the biodiversity of animals living in the rainforest.
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15
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biometrics - using unique parts of your body or special ways you act to prove who you are
My dad used biometrics by pressing his thumb on the phone to unlock it.
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seesaw
Swap points!
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gold
Win 50 points!
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fairy
Take points!
5
10
15
20
25
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baam
Lose 15 points!
Oops!
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eraser
Reset score!
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magnet
Take 20 points!
Okay!
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rocket
Go to first place!
Okay!
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banana
Go to last place!
Oops!
15
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biofuel - a special kind of energy made from living or recently living plants and animal waste instead of ancient fossils
Some cars can run on biofuel made from corn and sugarcane instead of regular gas.
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15
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biodegradable - capable of being broken down naturally by bacteria or other living organisms
We avoid using foam plates because they aren't biodegradable and will remain at the dump for hundreds of years.
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15
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biography - a written account of a real person's life written by someone else
We read a biography about a famous scientist and learned about her life.
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15
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biosphere - the part of Earth where all life exists, forming a giant "life zone" that includes every animal, plant, and tiny microbe
Earth's biosphere is made up of all living things, working together with the air, water, and land.
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