Animal Kingdom Review Flashcards

These flashcards are designed to help students review key concepts and classifications within the Animal Kingdom as covered in their lecture notes.

What are the four characteristics all animals share?

Eukaryotic, multicellular, chemoheterotrophic, and motile.

What is the term for animals that lack a backbone?

Invertebrates.

What are the four characteristics all animals share?

Eukaryotic, multicellular, chemoheterotrophic, and motile.

What is the term for animals that lack a backbone?

Invertebrates.

Name a phylum that includes sponges.

Porifera.

What body symmetry do jellyfish exhibit?

Radial symmetry.

What process forms the gastrula in animal development?

Gastrulation.

Which animal group is known for having bilateral symmetry?

Bilateria.

What distinguishes acoelomates from other animals?

They have no body cavity.

What type of body plan do Cnidarians, like jellyfish, have?

Sac body plan.

Name a phylum that includes segmented worms.

Annelida.

Which group of animals has a true body cavity lined with mesentery?

Eucoelomates.

What is the common name for animals in the phylum Mollusca?

Mollusks.

What is a defining feature of Arthropods?

Jointed appendages and an exoskeleton.

What are nematodes commonly known as?

Roundworms.

What structure do most Cnidarians use to capture prey?

Nematocysts.

What type of symmetry do echinoderms exhibit as adults?

Pentaradial symmetry.

What adaptation do vertebrates have that distinguishes them from invertebrates?

A backbone or vertebral column.

What defines the Phylum Chordata?

Presence of a notochord, dorsal nerve cord, post-anal tail, and pharyngeal slits.

What organisms are included in the group of Lophotrochozoans?

Mollusks, annelids, platyhelminthes.

What is the primary function of the radula in mollusks?

Feeding; used to scrape food.

What type of symmetry do Platyhelminthes exhibit?

Bilateral symmetry.

What essential feature do echinoderms have during their larval stage?

Bilateral symmetry.

Name a parasitic group of animals.

Platyhelminthes (flatworms) and Nematoda (roundworms).

What type of skeleton do nematodes possess?

Hydrostatic skeleton.

How do arthropods breathe?

Through gills or trachea depending on the group.

Which evolutionary event is considered a major transition for some animal lineages?

Transition from aquatic to terrestrial life.

How do Cnidarians typically reproduce?

Both sexually and asexually.

What is a common feature of bilateral animals during development?

Cephalization.

What type of body cavity do Nematoda and Arthropoda possess?

Pseudocoelom.

What do sea stars, sea cucumbers, and sea urchins have in common?

They are all echinoderms.

What is one unique ability of Cnidarians?

To regenerate lost body parts.

Which animal phylum is characterized by having a soft body, usually with a shell?

Phylum Mollusca.