Ecosystems

What characteristic of forests makes it possible for many populations to live there?

• warm environment

• lots of trees

• plenty of shade

• little rain

The desert environment supports less living organisms compared to other ecosystems because

• the desert is too hot to support living things

• the desert has hard soil that is hard to dig in

• the desert has less water available than other ecosystems

• the desert has nowhere for animals to hide

Which animal might benefit from a tree falling down in the forest?

• Lizard

• Squirrel

• Deer

• Bird

Which is not an animal adaptation of forest animals?

• Tails that can distract predators

• Powerful legs to run

• Sharp claws to climb

• Tails that swell to hold water

Which is a possible food chain for the forest ecosystem?

• leaves to squirrels to owls to mice

• owls to birds to mice to insects to seeds

• seeds to insects to mice to birds to owls

• leaves to seeds to insects to birds

Which organism could most easily escape a flood?

• deer

• ant

• bird

• lizard

Which of these do NOT provide shelter for animals in the grassland?

• Nests on the ground

• Burrows

• Tall trees

• Tall grasses

What type of roots do grassland plants have?

• Shallow roots on the surface to soak up as much rain as possible

• Long roots to reach water underground

• No roots because the leaves gather the water

Which is not a way water animals have adapted to living in the water?

• Gills to breathe

• Fins and flippers to swim

• Webbed feet to swim faster

• Big shells to hide in

A vine is growing on another plant to get sunlight in the woods. What structure of the vine helps it attach to the other plant?

• the flowers

• the leaves

• the tendrils

• the stem