You are presented with the question "What are nearly microscopic?" and the following answer choices: 
- all invertebrates
 - planets
 - some invertebrates
 - remains of prehistoric life
 - barnacles
 - Veins and arteries.
 - major threat to health
 - all vertebrates

Now knowing that some mollusks are nearly microscopic and mollusks are invertebrates and are no exception, choose the best answer.


 

   some invertebrates      