These structures are composed of the 9+2 arrangement of tubulin polymers.

Cilia and flagella.

Explanation:

Tubulin is the protein that acts the monomer of microtubules. Microtubules helps in the cellular motility, maintains the cell shape and helps in the movement of organelles.

Microtubules arrangement are different in different cell types. The 9+ 2 cell arrangement of the cell occurs in cilia and flagella. Dynein attaches the arms of the microtubules in the 9+2 arrangement of the cilia and flagella. Cilia and flagella are involved in motility process.

Thus, the answer is cilia and flagella.

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)

name and explain one of the event that occurs during meiosis that increases the variation in offspring even more than simple reproduction?