Fact 1: Mollusks reproduce sexually.

Fact 2: Mollusks are the dominant invertebrate.

Given the two facts above, answer the question "what reproduces sexually?" with the following options: 
- A compound that donates proton
 - spread flower seeds
 - They have webbed feet
 - Plant reproduction
 - By wind and rain
 - passenger pigeons
 - the dominant invertebrate
 - Something found in San Francisco


 

       the dominant invertebrate  