Vocabulary
What is a predator?
An animal that hunts another animal for food
What is the main source of energy in an ecosystem?
Sun
What helps protect animals against predators?
Camoflauge
Spider Web
Sun -> Green plants -> Mouse -> Snake -> Hawk. Which population would decrease if the mice population greatly increased?
Green Plants
What is the definition of prey?
An animal that is being hunted by a predator.
An ecosystem is all of the _______ and _______ things in an area.
Living and non-living
How does a frogs green color help them stay alive?
It helps them hide from predators
A food web ______
shows how all different food chains in a community are linked together
Plants -- Deer -- Fox -- Dead Fox. Where would the decomposer be?
Dead Fox
What is hibernation? Why do animals hibernate?
When animals go into a deep sleep during the winter when food is hard to find
True or False. A change in one population can cause other populations to change.
True
Wild deer live in many national forests. What would make the deer population smaller?
What may happen if you remove a predator from a food web?
the number of prey may increase
Decomposers are helpful to a food chain because they ____
Provide nutrients to the soil
animals such as herbivores and carnivores will die
moisture in the soil disappears, desertification begins
desertification is when an area becomes a desert because the environment changes
Habitat destruction, Pollution, Disease
Why are predators and prey important to the food chain/food web?
Without predators a species will become overpopulated and run out of food. If there are no prey then the predators will go extinct.
In a food chain, green plants are _______.
Producers
What is a community?
All the populations in an ecosystem make up a community
Populations of animals will decrease from the lack of food and shelter
What color fur will protect a rabbit in a snowy field?
black, brown, gray, white
white
deer, cow, sheep, kangaroos, buffalo
Give me an example of a food chain
One example
Sun---grass---cows---humans