Ecosystem: Biomes

A scientist took pictures of a deer, a black bear, and a squirrel in the wild.  In which ecosystem did the scientist most likely take the pictures?

• estuary
• forest
• grassland
• salt marsh

Which list includes organisms commonly found in a deciduous forest?

• deer, squirrel, mouse
• cactus, wildflowers, tortoise
• grass, prairie dogs, bison
• lizard, scorpion, kangaroo rat

Forests and grasslands are both examples of terrestrial ecosystems. Which best describes the differences between forests and grasslands?

• Forests have more trees but usually less rain than grasslands.

• Grasslands have more trees but usually less rain than forests.

• Forests have more trees and usually more rain than grasslands.

• Grasslands have less trees but more rain than forests.

Which statement is true?

• The sun is only important to the plant community.

• The sun is important to all parts of an ecosystem.

• The sun is only important during winter months.

• The sun is only important summer months.

Which best explains why an ecosystem can support a variety of organisms?

• Each organism takes care of itself.

• The organisms are in constant competition.

• The organisms give off carbon dioxide the producers need.

• Each organism contributes something to help the other organisms survive.

Which terrestrial ecosystem has warm, humid conditions and a large variety of plants and animals?

• estuary
• grassland
• deciduous forest
• tropical rainforest

Which can be concluded about the trees that grow in a temperate deciduous forest?

• The trees require constant direct sunlight to survive
• The trees grow only during the warm months of the year
• The trees have adapted to survive the change of seasons
• The trees are unable to grow in climates that have constant rainfall

Which factor is abundant in a forest but limited in a grassland?

• condensation
• evaporation
• precipitation
• transpiration

The American grassland are home to which types of animals?

• elephants, lions, and zebras
• foxes, prairie dogs, and rabbits
• lizards, tortoises, and weasels
• wolves, deer, and bears

Which marine ecosystem would be best for organisms that can adapt to both salt water and fresh water?

• Estuary
• Lake
• Pond
• River