All of the living and nonliving things that interact in an environment make up an ________.
Ecosystem
100
This is at the start of almost all food chains.
Sun
100
This type of ecosystem has a dry climate with little rain, and sandy soil with few nutrients.
Desert
100
When an animal is able to blend into its environment to stay safe, it is using this.
Camouflage
100
A food chain shows how this passes from one organism to another.
Energy
200
The pattern of weather in a place over a long time is this.
Climate
200
These are organisms in a food chain that make their own food.
Producers
200
This type of ecosystem has cold winters and warm summers, and soil that is rich in nutrients and humus.
Temperate forest
200
Why are many desert animals nocturnal?
It is cooler for them to hunt at night.
200
What is the difference between a food chain and a food web?
A food chain shows one way energy passes from organism to organism. A food web is a collection of various food chains that might be found in a particular ecosystem.
300
Bits of rock and humus make up this.
Soil
300
Spiders, deer, and eagles would all be examples of these in a food chain.
Consumers
300
In an ocean ecosystem, most plants and animals live in this part of the water, because the water is lit and warmed by the sun.
Shallow water
300
What is mimicry?
When one living thing imitates another in color or shape.
300
Name the largest of the five oceans.
Pacific Ocean
400
What is an adaptation?
A structure or behavior that helps an organism survive in its environment.
400
Decomposers are organisms in a food chain that do this.
Break down dead plant and animal material
400
Monkeys, brightly colored birds, and insects live in this type of ecosystem.
Tropical rain forest
400
Why do many animals that live in temperate forests hibernate in the winter?
When they hibernate, they do not need to eat and they use less energy, so they can survive during the cold winter months.
400
What adaptation to many arctic animals have to help them survive in the harsh cold temperatures?
Blubber
500
When an animal moves from one place to another, it is doing this.
Migrating.
500
Put this food chain in order with arrows.
Lion Zebra Sun Grass Bacteria
Sun --> Grass --> Zebra --> Lion --> Bacteria
500
This ecosystem has fresh or salt water and helps prevent land from flooding by collecting water.
Wetland
500
List the three reasons that animals have adaptations.
1. to meet needs
2. to stay safe
3. to survive in certain climates
500
Why are decomposers important to ecosystems?
As they break down dead material, they release nutrients into the water or soil to help other organisms grow.