Biodiversity usually increases as you get closer to the ____________.
What is the equator?
100
These are the original organisms in an ecosystem.
What are native species?
100
This is the contamination of air, water, or soil with substances that can cause loss of habitats and reduced biodiversity.
What is pollution?
100
This is a population of organisms cared for by humans.
What is a captive population?
100
This is a helpful variation that allows an organism to better compete for resources, survive, and reproduce.
What is an adaptation?
200
The _________&___________ an ecosystem is, the more biodiversity it usually has.
What is warmer & wetter?
200
This is a species that moves into an area as a result of human activities.
What is an introduced species?
200
This is the thinning of the layer of protective gas that helps protect living things from the Sun's ultraviolet radiation.
What is ozone depletion?
200
These are built to link two areas together so animals don't have to cross roads.
What are wildlife corridors?
200
This famous scientist's theory was called Evolution by Natural Selection and was published in his book: On the Origin of Species.
Who is Charles Darwin?
300
This is the most biologically diverse area on Earth, with over 50% of known species living on only 7% of the Earth's surface area.
What is the tropical rainforest?
300
A species is said to be ____________ if it could become extinct.
What is endangered?
300
This forms when pollution from industry and automobiles combines with water vapor.
What is acid rain?
300
This is where seeds are stored in case a species disappears from the wild.
What is a seed bank?
300
These are parts that don't seem to have a purpose or function.
What are vestigial structures?
400
Biodiversity is commonly measured by the number of different __________ in an area.
What are species?
400
A species is said to be _____________ if it could become endangered.
What is threatened?
400
This is the gas that is released into the atmosphere when wood, coal, gas, or any other fuel is burned.
What is carbon dioxide or CO2?
400
This is returning organisms back to the area where they once lived.
What is a reintroduction program?
400
This is a two-word naming system that tells you an organism's genus and species.
What is binomial nomenclature?
500
The activities of __________ are the biggest causes of a reduction in biodiversity in recent history.
What are humans?
500
Scientists theorize that a large meteorite crashing into Earth's surface may have caused the dinosaurs to become ________, meaning there are none left.
What is extinct?
500
This happens when greenhouse gases trap the Sun's heat in the Earth's atmosphere, causing average temperatures to rise, possibly melting the polar ice caps and flooding coastal ecosystems around the world.
What is global warming?
500
This is the process of bringing a damaged area back to a healthy condition.
What is habitat restoration?
500
These are the seven levels or orders of classification.
What are Kingdom, Phylum, Class, Order, Family, Genus, and Species?