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Ecosystems- 5th grade Science
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Why are arrows used in food webs and chains?
Arrows show the flow of energy.
An animal whose niche is to hunt and kill its own food like other animals
predator
A food chain models how energy is transferred in an
ecosystem
Example of a biotic factor
tree, animal, person, etc
Eats animals for energy
consumer
What is an abiotic factor?
non-living things such as rock, pavement, air, etc.
Shows the relationship among all species in an ecosystem
food web
Organisms at the beginning of a food chain are called
producers
Breaks down decaying material in an ecosystem
decomposer
What happens if there are too many rabbits in an ecosystem?
They eat all the grass and there isn't enough food for everyone!
What would happen if all the grass died?
Primary consumers which eat grass would not have enough food. These consumers would die from lack of food.
What is a prey?
A prey is an animal that is eaten by another animal.
Does the lion have a predator in nature?
NO
True or false: Secondary consumers eat other animals.
True. Secondary consumers are carnivores.
True or False: Primary consumers eat other animals.
False - Primary consumers eat plants - herbivores.
True or False: Food chains start with consumers?
False because food chains start with plants and plants are producers!
What is a food chain?
A food chain shows how each living thing gets food and energy.
Which of the following is not a decomposer? fungi - bacteria - an owl
An owl is not a decomposer!
What is a decomposer?
A decomposer gets energy from dead plants and animals.
True or False: Omnivores eat only animals.
False because omnivores eat plants and animals.
The wolf eats the rabbit for lunch. Who is the prey?
The rabbit is the prey.
The wolf eats the rabbit for lunch. Who is the predator?
The wolf is the predator.
Which one is not a consumer? a tree - a dog - a bear
A tree is not a consumer - it is a producer!
What is a consumer?
A consumer eats other animals and plants for energy.
Which of the following is not a producer? a cat - grass - lettuce
A cat is not a producer.
What is a producer?
A producer generates its own food. A producer is a green plant.
Which animal is not a carnivore? A cat - a rabbit - a wolf
The rabbit is not a carnivore.
Which animal is not a herbivore? A cat - a cow - a rabbit
The cat is not a herbivore.
I eat plants. Who am I?
I am a herbivore.
I eat meat - other animals - yum! Who am I?
I am a carnivore