Environmental Issues
Forests & Fisheries
Biodiversity
The Search for New Medicines
Vocabulary
100
A town's decision about how to dispose of its trash is a decision made at this level.
What is a local level?
100
These are two examples of logging methods.
What is clear-cutting and selective cutting?
100
Three factors that affect biodiversity.
What is diversity of niches, land area, climate?
100
Cancer cells grow by dividing. This drug forms a cagelike structure around the cancer cells preventing its spread.
What is taxol?
100
A chemical in the Pacific Yew tree bark that has cancer-fighting properties.
What is taxol?
200
Any change to the environment that has a negative effect on living things.
What is pollution?
200
When catching fish faster than they can breed.
What is overfishing?
200
The most diverse ecosystems in the world.
What is a tropical rain forest?
200
The bark of the willow tree.
What plant was aspirin originally made from?
200
The number of different species in an area.
What is biodiversity?
300
Resources that are not replaced as they are used.
What is a nonrenewable resource?
300
The practice of raising fish and other water-dwelling organisms for food.
What is aquaculture?
300
A species that influences the survival of many other species in an ecosystem.
What is a keystone species.
300
The goal was to preserve undiscovered medicines that might exist in nature.
Why did the AMA call for the protection of Earth's biodiversity?
300
The community of organisms that live in a particular area.
What is an ecosystem?
400
Five factors that can cause pollution.
What are chemicals, wastes, noise, heat, light?
400
An area with a large population of valuable ocean organisms.
What is a fishery?
400
The major cause of extinction.
What is habitat destruction?
400
They produce chemicals that protect them from predators, parasites, and diseases. These same chemicals can be used to fight human diseases.
What adaptations of rain forest plants make them likely sources of medicines?
400
A structure in an organisms cell that carries its hereditary information.
What is a gene?
500
Two types of costs & benefits.
What are expenses and ecological damage, and what is a new supply of needed materials and jobs?
500
An amount of a renewable resource that can be regularly harvested without reducing the future supply.
What is a sustainable yield?
500
Three features that a wildlife reserve should have in order to best protect biodiversity.
What is a large enough area, variety of niches, and no pollution
500
To treat cancer.
How is taxol used medically?
500
An environmental factor that causes a population to decrease.
What is limiting factor?
M
e
n
u