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Ch. 10 Biodiversity

Impastato/Crovato

QuestionAnswer
How many species are thought to inhabit the Earth? 10 million
What percentage of extinctions are caused by habitat destruction? 75%
The number and variety of species on Earth is called _________ biodiversity
the illegal hunting and slaughter of African elephants for their ivory tusks is also known as ______________ poaching
Any species with a declining population that could become endangered is a __________________________ threatened species
A ___________ is any species likely to become extinct if it's not protected. endangered species
The ____________ is a treaty to preserve biodiversity that resulted from the Earth Summit in 1992 Biodiversity Treaty
The death of many species in a relatively short time is known as ________________ mass extinction
A ________ is an organism that is critical to an ecosystem's functioning. keystone species
The kind of diversity represented by all the different genes found in a population is called _______________ genetic diversity
The Florida panther is an ______________ species as a result of habitat destruction. endangered species
The Amazon rain forest is an example of a habitat with a high species variability known as a _____________ hotspot
A __________________ program is being used to help increase the population of California condors. captive breeding
_________ caused the eggs of the Bald Eagle to softened and drastically reduced their numbers. DDT
This group helped stop the poaching of elephants for their ivory tusks _____ CITIES
An endangered species is ______ a. a species in danger of extinction b. an organism brought to a place where it has not lived before c. a species that has disappeared entirely a. a species in danger of extinction
What are 3 ways humans cause extinctions? 1) habitat destruction 2) invasive species 3) use of pesticides, cleaning agents, and other chemicals
In what part of the world are the greatest number of extinction occurring? tropical rain forest
The International Union for Conservation of Nature and Natural Resources (IUCN), is a ________________________________________ collaboration of about 200 governmental agencies and 700 private conservation groups from around the world
The current rate of species extinction is ______________ attributable to the actions of humans
The fact that organisms are adapted to survive in particular environments help to explain why _____________________________ habitat destruction accounts for most extinctions
The level of biodiversity that involves a variety of habitats and communities is _____________ ecosystem diversity
What are 3 areas of the United States represent ecosystems with high levels of biodiversity? coastal California, Hawaiian Islands, and Florida Everglades
Where are many critical biodiversity hotspots located? islands, tropical rain forests, and coastal areas
What would be the most effective in slowing the loss of biodiversity? creating large parks/preserves in biodiversity hotspots
According to biologists, what percentage of species have become or are expected to become extinct between 1900 and 2100? 25 percent
How many mass extinctions have there been in the past? 5
What level of biodiversity is most commonly equated with the overall concept of biodiversity? species diversity
What groups of organisms are most in danger of extinction? those with small populations and that migrate or need special habitats
The major human causes of extinction today are ______ a. hunting and destroying habitats b. polluting and introducing non-native species c. both (a) and (b) c. both (a) and (b)
What is NOT an invasive species in our area? Cahaba Pebble Snail
Reduction in the sea otter population affected the Pacific coast ecosystem by removing a ______________________ keystone species
The Gopher Tortoise is threatened in the state of Alabama because of ______ cars
The Alabama Sturgeon is an example of _____________ the living dead
Why did the Dodo bird go extinct? over hunting
Who is an Alabama native who is known as the father of "sociobiology" and "biodiversity" EO Wilson
An _______ is an organism that is not native to a particular region. exotic species
Fire Ants in the southeastern United States are an example of an _________ invasive species
q
Created by: dcrovato
 

 



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