A group of atoms joined together.
What is a molecule?
What do organisms need to live?
Energy storage molecules
What causes the extreme changes in the Arctic between winter and summer?
The Earth's tilt
What do coral reefs need to survive?
Lots of sunlight
Where is most of the life in the rain forest found?
In the canopy
All the living things in a place, plus the nonliving things.
What are ecosystems?
What do producers use to perform photosynthesis?
Carbon dioxide and sunlight
What is the main reason Arctic plants are able to grow so much during the summer?
Constant sunlight (they can perform photosynthesis all day and night)
What is the role of algae in the coral reef ecosystem?
What happens when a big tree falls in the rain forest?
A hole is made in the canopy
Living things that make their own food.
What are producers?
What happens as producers make more energy storage molecules?
Consumers get more energy storage molecules from eating the producers
What happens to many plants in the Arctic when the summer ends and the sunlight decreases?
They stop photosynthesis (will also accept "become inactive" or "survive as seeds")
What happens if a coral reef does not get enough sunlight?
The algae and coral polyps die
Why is there less life on the rain forest floor?
Very little sunlight reaches the ground (hard to do photosynthesis)
The process that plants use to turn water and carbon dioxide into oxygen and energy using sunlight.
What is photosynthesis?
Name three examples of energy storage molecules mentioned in the text.
glucose, starch, and fat
What is one way that some animals survive the winter in the Arctic?
Hibernation
What are coral reefs made of?
Coral polyps
How do trees and plants in the rainforest canopy get their energy?
Photosynthesis
A type of sugar that plants make during photosynthesis
What is glucose?
Where does photosynthesis happen? (only producers have them)
Chloroplasts
What is one reason, besides the availability of food, that more animals are present in the Arctic during the summer?
Birds and other animals migrate to eat and reproduce.
Why do coral reefs need clear water?
So sunlight can reach the reef
What happens to the glucose that trees and plants create?
It is stored in the plants and/or used as energy by animals.