The spiny-skinned invertebrates are:_______

Why are sea anemones, earthworms, and squid all classified as invertebrates?

Which invertebrate group has no symmetry, no Cephalization, and no gut?

Which 2 invertebrate groups have radial symmetry?

What characteristic can be used to distinguish different groups of arthropods?

You find an animal with an exosekelelton and jointed legs. Which invertebrate group does it belong to?

What are the 6 major groups of invertebrates? Check all that apply

T or f: all living things are vastly complex

T or f: creationists can talk about “relative complexity” - the fact that some animals are relatively more complex than others (like worms vs mammals). But, they agree that all animals are complex.

T of F; invertebrates are animals without backbones and are also Ectotherms….but, beyond these 2 shared characteristics invertebrates are extremely varied.

Which Phylum name “Porifera” (pore-bearer) lives in water, and most species live in the ocean?

All cnidarians have stinging cells called _________which they use to capture food.

True or false: each of the 3 types of worms forms a separate phylum within kingdom Animalia, but they are traditionally grouped together becuase they look similar.

Phylum ______ live in the worlds oceans, from tide pools to the deepest sea floors. Most have radial symmetry.

What are the 3 major groups of mollusks? Check all that apply

T or F: many studies have shown octopuses to be among the most intelligent of all invertebrate animals

The largest phylum of invertebrates is _______. The second largest phylum is ________.

Adult insects have __ body segments, and __ legs

Most of the well known crustaceans including crabs, lobsters, and shrimp are callled _____ because they have 4 pair of walking legs and one pair of pinchers,

Arthopods, as well as, shelled mollusks, have an _______

_______ like spiders, scorpions, and ticks are arthpods .

Chelicerae is a kind of ____ part that in spicers are modified into fans for injection venom in the chelicerate family

T or f: daddy longlegs (harvestman) spiders are harmless to humans