Fungi of the phylum basidiomycota form mycorrhizal associations with orchids, a type of flowering plant. how do these associations benefit both the fungi and the orchids? a. the orchids release enzymes to break down sugar for the fungi, while the fungi fertilizes the soil surrounding the plant. b. the orchids gain nutrients and carbon dioxide from the fungi, while the fungi gain oxygen and sugar from the orchids. c. the orchids receive water and oxygen from the fungi, while the fungi receive food and minerals from the orchids. d. the orchids produce decaying material for the fungi, while the fungi provide structural support to the orchids.

The answer is; A

This is a symbiotic relationship. The mycorrhiza is harbored I the roots of the orchids. The fungi nitrify the soil around the plant. Therefore, the fungi make nitrates (which are critical for the growth of the plant) available to the plant. The fungi, on the other hand, are assisted in breaking down of large carbon polymers by the orchids because the plant’s enzyme is more powerful than those of the fungi.

a community that experiences major changes undergoes progress

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)