What three basic things must the human population have in order to survive? O A. Shelter, money, and waste disposal
O B. Food, shelter, and transport
O C. Food, shelter, and water
O D. Electricity, water, and farmland
Please help

Food, water and shelter are the three basic things the human population must have in order to survive.

Explanation:

the index of refraction of the second medium is higher. i just took the test trust me !

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)