You are presented with the question "Some _ are nearly microscopic" and the following answer choices: 
- gastropod shells
 - invertebrates
 - peachleaf willow
 - homogenous
 - barnacles
 - an organism's body
 - Veins and arteries.
 - reproduce

Now knowing that some mollusks are nearly microscopic and mollusks are the second-largest invertebrate group, choose the best answer.


 

  invertebrates       