AP BIOLOGY

Detailed explanation-1: -Invertebrates that you may be familiar with include spiders, worms, snails, lobsters, crabs and insects like butterflies. However, humans and other animals with backbones are vertebrates.

Detailed explanation-2: -Mollusks are a large group of invertebrate animals. Mollusks have soft bodies, and their bodies are not divided into rings like the segmented worms called annelids .

Detailed explanation-3: -Invertebrates range from spiders and scorpions to centipedes and millipedes, crustaceans, insects, horseshoe crabs, worms, leeches, earthworms, marine bristle worms, mussels and clams, snails, squid and octopi, sea anemones and corals, among others.

Detailed explanation-4: -Slugs and snails are invertebrates (animals without backbones) with soft bodies that they drag around on a single, muscly “foot”. They have tentacles on their heads that they use to sense their surroundings.