Ecosystems 5th Grade

Grasslands have very few trees while forests have many trees. Why is this statement true?

• Grasslands receive less rain than forests.

• Grasslands receive less sunlight than the forests.

• The animals of the grasslands eat small trees before they can grow.

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

• estuary

• grassland

• deciduous forest

• tropical rainforest

Which is most similar between an ocean water ecosystem and a pond water ecosystem?

• the variety of organisms

• the amount of space available

• the type of nutrients available

• the climate and daily temperature

Which best describes a lake ecosystem?

• contains only salt water

• contains only freshwater

• contains both freshwater and salt water

Which best describes a desert during the day?

• cold and wet

• cold and dry

• hot and wet

• hot and dry

How are all ecosystems similar to forest ecosystems?

• All ecosystems have plenty of trees for consumers to eat.

• All ecosystems provide nutrient-rich soil for the producers.

• All ecosystems provide diverse populations of small animals that consumers can eat.

• All ecosystems have an appropriate amount of sunlight to support the producers living there.

Which best explains the adaptations needed for organisms living in an estuary ecosystem?

• Organisms must be adapted to live in salt water.

• Organisms must be adapted to live in fresh water.

• Organisms must be adapted to live in both fresh water and salt water.

Which part of a pond ecosystem gives small fish shelter?

• rocks

• water

• frogs

• soil

Which two ecosystems are terrestrial?

• ponds and lakes

• forests and estuaries

• oceans and grasslands

• forests and grasslands

Which of these ecosystems supports the widest variety of plants and animals?

• desert

• estuary

• grassland

• deciduous forest