Food Webs and Flow of Energy
Where do producers get their energy from?
The sun
The arrows in a food chain represent the flow of ____________.
Matter
A living thing that makes its own food is called a ____________________.
Producer
What is a living thing that can break down dead plants, dead animals, or animal waste?
A decomposer.
What are organisms that live in water and that produce their own food, like plants do?
Algae.
What is a carnivore?
An organism that eats meat
All the living things that interact with each other and their environment in one place is called an ___________________.
Ecosystem
What is found on the Earth’s surface; made of tiny rocks and material from dead plants and animals?
Mold and mushrooms are examples of fungi. True or false?
True.
What is an algae bloom?
A quick increase in the amount of algae growing in an area.
What do we call the remains of a plant or animal that lived a very, very long time ago
A fossil
All the ants disappearing would have no impact on the ecosystem. True or False?
False.
Plants use material from the air to grow bigger and heavier. True or false?
True
An ecosystem needs decomposers. True or false?
True.
A living thing's surroundings, including other living things and non-living parts like soil, water, and air is called an _____________.
Environment.
If the sun is blocked or missing, what will happen to plants?
They will die out.
Plants and animals in a park ecosystem are connected to each other through _________________.
Food chains.
Plants gain weight (or mass) from soil. True or false?
False.
Where do fallen leaves go?
They get broken down by decomposers.
Humans are not affected by algae blooms. True or False?
Explain.
Humans are affected because algae are eaten by smaller fish (like guppies), which are then eaten by larger fish (like salmon), which are then consumed by humans.
Why do meat eaters need the sun to survive?
Because they eat primary consumers, who eat producers (plants), that get their energy from the sun
In an ecosytem, the energy flows from grass to the ant to fence lizard to the hawk. What would happen if a rabbit was added to the ecosystem?
The rabbits would eat ants, which would leave less food for the fence lizards. As a result, the fence lizards may die out.
500 grams. A plant doesn't gain weight (or mass) from soil, so the mass of the soil will remain the same.
What would happen to a forest ecosystem if all the decomposers went away?
All the leaves would pile up. There would lots of dead plant and animal material.
What causes algae blooms?
Waste left on ground surfaces far from water (such as dog waste in a park or agricultural fertilizer) gets washed away by rain into street grates and storm sewers, flowing directly into streams and lakes.