4. List some indications that things are not all bad and thatprogress toward sustainability is possible.

1. a host loses nutrients to a parasite

2. a parasite only benefits when the host is alive (cause if the host dies the parasite dies with it )

3. producers to consumers

4. the tapeworm is a parasite

5. they convert energy from the sun (photosynthesis)

6. sunflower-robin (i think im 80% sure)

7. producer

8. consumer

9. prey

10. fresh water snails ( cause the green algea is the producer and the snails are the primary consumers and the small fish consumer so is the big fish)

all matter is made up of atoms

in any element all atoms are the same

elements in a compound are always in a constant ratio: apex

colors do exist. the color of the sky is actually violet; humans percieve the color of the sky as blue.