Fill-in-the-Blank Test: Invertebrates (Part 1)

Section A: Introduction to Invertebrates — Animals that do not have a backbone are called (a)   .

Section A: Introduction to Invertebrates — Invertebrates make up about (a)   % of all animal species.

Section A: Introduction to Invertebrates — The study of animals is called (a)   .

Section A: Introduction to Invertebrates — A body plan that can be divided into equal halves is called (a)   symmetry.

Section A: Introduction to Invertebrates — Animals with no symmetry are described as (a)   .

Section B: Sponges (Phylum Porifera) — Sponges belong to the phylum (a)   .

Section B: Sponges (Phylum Porifera) — Sponges have many tiny openings called (a)   .

Section B: Sponges (Phylum Porifera) — Water exits a sponge through a larger opening called the (a)   .

Section B: Sponges (Phylum Porifera) — Specialized cells with flagella that move water are called (a)   .

Section B: Sponges (Phylum Porifera) — Sponges have a simple skeleton made of (a)   or spongin.