Ecosystems
Ecosystems are made up of these two things.
1. Living
2. Nonliving
Ice covers the land surface in a polar ecosystem. Temperatures are very low. During half the year, there is little or no sunlight. Polar bears use layers of fat and thick fur to keep them warm.
a. rainforest
b. polar
c. desert
b. polar ecosystem
An animal that gets energy by eating plants or other animals.
a. consumer
b. producer
c. predator
a. consumer
If the number of frogs decreases, which population will most likely increase?
a. eagles
b. snakes
c. crickets
d. green plants
c. crickets
a. food chain
b. food webs
c. energy pyramid
b. food web
Name three nonliving things in an ecosystem.
Sun, soil, water, sand, air, rocks, etc.
Daytime temperatures are very high, little rain falls here, and the soil is poor and sandy. Plants have to adapt to these conditions. Many animals are active only at night when temperatures are cooler.
a. desert
b. rainforest
c. grassland
b. desert ecosystem
These organisms can make their own food by the process of photosynthesis.
a. producer
b. consumer
c. decomposer
a. producer
When the food supply in an area decreases, many of the deer living in the area will:
a. move to a new habitat
b. change their color
c. hibernate
d. reproduce
a. move to a new habitat
Humans have hair and nails that are always growing. What provides the energy needed for this growth to occur?
a. wind
b. food
c. water
d. soil
Name three living things in an ecosystem.
Any specific plant or animal.
It rains a lot here. It can be warm all year, and there is a lot of sunlight. Trees grow close together here providing shelter for many organisms.
a. rainforest
b. polar
c. swamp
a. rainforest ecosystem
All consumers in an ecosystem depend on ______ for their food.
a. producers
b. other consumers
c. seeds
a. producers
Which organism is a producer?
a. crickets. eagles
c. frogs
d. green plants
d. green plants
In which order is energy transferred through a food chain?
a. Sun -> plants -> animals
b. Sun -> animals -> plants
c. animals -> plants -> Sun
a. Sun -> plants -> animals
In order to grow and thrive, all animals need water, air, and...
a. food
b. sunlight
c. soil
d. offspring
a. food
This ecosystem is made up of mostly grass. The temperatures vary depending on the location. This ecosystem can be anywhere in the world, except Antartica. Prairie dogs, voles and cattle roam my land.
a. forest
b. grassland
c. swamp
b. grassland
Which type of organism helps returns nutrients from dead plants and animals to the soil?
a. producer
b. prey
c. predator
d. decomposer
d. decomposer
I am the beginning of all ecosystems. I am the reason there is life on earth. What am I?
The sun.
What is the difference between a decomposer and a scavenger?
A scavenger eats dead animals and the decomposer breaks down what the scavenger does not eat.