Quizzez: Chapter 6, science

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What percentage of Earth's surface is covered in water?

75

What is net primary productivity related to in aquatic ecosystems?

Available to sunlights and nutrients

What data are shown on a standard climatograph?

Average monthly temp

What are the characteristics are used to classify biomes?

Climate, vegetation, and animals

Which of the following biomes would have the highest net primary production?

Coral reef

In aquatic ecosystems, light availability is largely a function of water

Depth

In tropical rain forests, plants called ________ grow on other plants instead of in soil. They take advantage of the host plan's height to get more sunlight.

Epiphytes

In deserts, some animals avoid hot, dry periods by going into ____________, a sleeplike state of inactivity.

Estivation

Which ecosystems are considered standing freshwater ecosystems?

Lakes, wetlands, ponds

What ocean zone (least productive) begins at the edge of the continental shelf and then extends outward into deeper water?

Open ocean

The measure of the amount of salts dissolved in water is called

Salinity

Tropical biomes with less rain than tropical dry forests, but more rain than deserts, are called __________, or tropical grasslands.

Savannah

Lakes, ponds, and wetlands are examples of ____________ ecosystems.

Standing water

What adaptations do mammals such as seals and whales have to help them survive in polar regions?

Thick fur and blubber

What adaptation would most benefit plants that lived in a desert biome area with very dry conditions?

Thick, fire resistant bark

Why do shorter trees and plants that make up the understory in tropical rain forests have large, flat leaves?

To get the maximum amount of sunlight possible

Day-to-day conditions in Earth's atmosphere, such as "sunny and humid," describe

Weather

Ecologists use similarities between ecosystems to classify them into broad categories called

biomes

Water with a salinity that is greater than fresh water but less than saltwater is classified as

brackish

Criteria such as salinity, depth, and whether the water is flowing or standing are used by scientists to

classify aquatic ecosystems

In temperate rain forests, trees such as cedars and spruces, which do not lose their leaves at any time of year, are called

coniferous

Most trees in tropical dry forests are __________, which means they lose their leaves and stop photosynthesis during part of the year.

deciduous

Which biome would have the lowest net primary production?

desert

Where rivers flow into the ocean, mixing fresh water with saltwater, brackish ecosystems occur which are called

estuaries

Marshes, swamps, and bogs are examples of

freshwater wetlands

Over a given unit of time, the rate at which plants and algae convert solar or chemical energy into energy stored in the bonds of organic sugars is called

gross primary production

In which ocean zones do crabs, mussels, anemone, barnacles, and sea stars live?

intertidal

Which zone of an aquatic ecosystem tends to have more life—both producers and consumers?

photic zone

Which of the following describes the aphotic zone in an aquatic ecosystem?

the zone where no sunlight penetrates and photosynthesis cannot occur

To help them survive in the tundra, caribou have various adaptations, such as

wide hooves for travel on mud and snow


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