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11.1 Biomes
11.2 Aquatic Ecosystems
11.3 Forests and Fisheries
11.4 Biodiversity
100
What is a biome?
A biome is a region with a certain climate and certain forms of vegetation.
100
What is an estuary?
An estuary is found where the fresh water of a river meets the salt water of the ocean.
100
What is a renewable resource?
A renewable resource is one that is either always available or is naturally replaced in a relatively short time.
100
What is biodiversity?
The number of different species in an area is called its biodiversity.
200
What 2 factors determine the type of biome found in an area?
It is mostly the temperature and precipitation in an area that determines its biome.
200
What are the 3 zones of the marine ecosystem? What are they classified by?
The 3 zones are the intertidal zone, the neritic zone, and the open ocean. These zones are classified largely by the depth of water.
200
What is aquaculture?
Aquaculture is the practice of raising fish and other water-dwelling organisms for food.
200
What is a keystone species?
A keystone species is a species that influences the survival of many other species in an ecosystem.
300
What are the two different types of grassland?
The two types of grasslands are a savanna and a prairie.
300
What are the 2 zones within the open ocean?
The 2 zones are the surface zone and the deep zone.
300
What is the difference between selective cutting and clear-cutting? Which one is better for the environment?
Clear-cutting is the process of cutting down all the trees in an area at once. Selective cutting is cutting down only some trees in a forest and leaving a mix of tree sizes and species behind. Selective cutting is better for the environment.
300
What are 4 factors that affect an area's biodiversity?
Factors that affect biodiversity in an ecosystem include area, climate, diversity of niches, and keystone species.
400
What are the six major biomes?
The six major biomes are the desert, rain forest, grassland, deciduous forest, boreal forest (taiga), and tundra.
400
What is the difference between the food web in the ocean and on land?
The difference is the producers in the ocean are algae rather than plants.
400
How can forests be managed as renewable resources?
Because new trees can be planted to replace trees that are cut down, forests can be renewable resources.
400
What are 3 ways that biodiversity can be protected?
3 successful approaches to protecting biodiversity are captive breeding, laws and treaties, and habitat preservation.
500
What are deciduous trees and coniferous trees? Where is each one found?
A deciduous tree is one that sheds their leaves and grows new ones each year. They grow mainly in the deciduous forest. A coniferous tree is one that produces their seeds in cones and has leaves shaped like needles. These grow mainly in the boreal forest, or taiga.
500
What 4 abiotic factors influence aquatic ecosystems?
All aquatic ecosystems are affected by the same abiotic factors: sunlight, temperature, oxygen, and salt content.
500
What are 4 ways to manage fisheries for a sustainable yield?
Managing fisheries for a sustainable yield includes setting fishing limits, changing fishing methods, developing aquaculture techniques, and finding new resources.
500
Why is the introduction of a nonnative species a threat to biodiversity? What are 3 other human activities that can hurt biodiversity?
A nonnative species does not have natural predators or consumers, so the introduced species often outcompetes or harms the native organisms. 3 other human activities that threaten biodiversity include habitat destruction, poaching, pollution.