Some _ are nearly microscopic
gastropod shells invertebrates peachleaf willow homogenous barnacles an organism's body Veins and arteries. reproduce
A B C D E F G H
Mollusks are the second-largest invertebrate group.
Some  invertebrates are nearly microscopic
Some _ are nearly microscopic (A) gastropod shells (B) invertebrates (C) peachleaf willow (D) homogenous (E) barnacles (F) an organism's body (G) Veins and arteries. (H) reproduce