Einstein
Benjamin Franklin
Newton
Darwin
Thomas Edison
100
Which one of the following is true?
*All living things need energy to survive.
*Without the sun, only plants would die.
*Only some animals need energy to survive.
*Plants do not need energy to survive
All living things need energy to survive.
100
Most of the oxygen we breathe is a result of_____.
photosynthesis
100
What would happen without herbivores in a coral reef ecosystem?
the reef would become overgrown with algae
100
Which of the following is the secondary consumer illustrated in this food chain?
the bird
100
Which of the following is the producer shown in this food chain?
the plant
200
What is photosynthesis?
Use the terms: chlorophyll, light energy, water, carbon dioxide, sugar, oxygen
A plant’s chlorophyll uses light energy to change water and carbon dioxide into sugar and oxygen.
200
Which chemical helps absorb light?
chlorophyll
200
Why does every food chain begin with a producer?
animals cannot create their own food
200
Which of the following is the primary consumer shown in this food chain?
the grasshopper
200
What is a food web?
a network of interconnected food chains
300
How does energy travel from the sun to earth? How long does it take?
Energy in the form of light and heat travels from the surface of the sun to Earth in about eight minutes
300
What process do plants use to turn light energy into chemical energy?
photosynthesis
300
What is a primary consumer in a food chain?
herbivores
300
What percentage of energy consumed by an animal will be passed onto the next level?
about 10%
300
What are apex predators?
predators that are not hunted or eaten by an animals
400
How can you accurately describe light energy?
A kind of energy that illuminates things on earth.
400
Which of the follow is not true?
*Without the sun, Earth would be a frozen lifeless world.
*Energy from the sun travels to Earth in the form of light and heat.
*All energy on Earth can ultimately be traced back to the sun.
*Without the sun, Earth would have different forms of life.
With the sun, Earth would have different forms of life.
400
Where does the carbon in trees come from?
photosynthesis fixes carbon dioxide from the air into carbon in trees
400
What do decomposers do?
reproduction
400
What is a secondary consumer in a food chain?
carnivore
500
Why are coral reefs found near the surface of the ocean?
they need energy from the sun
500
Which of the following is the tertiary consumer illustrated in this food chain?
the snake
500
How do decomposers and consumers interact in an ecosystem?
decomposers break down dead consumers
500
What are the main types of living things in an ecosystem?
producers, consumers, and decomposers
500
What is an example of a decomposer?
bacteria