When a substance or large molecule is enclosed by a membrane in a vesicle within the cell, the membrane of the vesicle fuses with the cell membrane and releases the substance out into the cell's surroundings. This is: exocytosis

endocytosis

facilitated diffusion

osmosis

it is a

explanation:

b. heterotroph

explanation:

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)