Intro To Comparative Anatomy- Doran p.3 Quiz Animal Anatomy

What is a Agnatha?

Jawless fish

What are Chondrichthyes?

Cartilaginous fish

What are Osteichthyes?

Bony fish

What animals fall under the topic of Amphibia?

Frogs, salamanders, and toads

What animals fall under the topic of Reptilia?

Snakes and lizards

What animals fall under the topic of Aves?

Birds

What animals fall under the topic of Mammalia?

Humans, dogs, cows, and other mammals

anatomy

structure of animals and plants

Phylogeny 

Cladistics

Taxonomy

What is an animal?

Organism, Multicellular, Heterotroph (eats things), No cell wall!

Blastula

ball of cells that an animal forms from.

Blastopore

folding in of the blastula/ becomes the digestive tract.

Blastopore becomes the digestive tract in two ways:

1) Protostome- an animal whose mouth develops first from blastopore

2) Deuterostome- an animal whose anus develops first from blastopore.

Coelom

an internal body cavity that is lined with epithelial tissue. (Like a pillow for your organs)

“Cephalo-” refers to _____.

the head

Bilateral symmetry-

Organisms have paired appendages and features that are divided by a line down the middle.

Examples: humans / butterflies / fish / dog / cat

Radial symmetry-

organsims are symmetrical in rings moving out from the center.  (similar parts arranged around a central point)

Examples: Jellyfish / starfish / sea urchin / flowering plants

Invertebrates:

• No vertebral column (backbone)

• 95% of all animal species

• Includes multiple phyla (pl. of phylum)

• A very broad and diverse group of animals

Some groups of Invertebrates:

Sponges, Cnidarians, Flatworms, Roundworms, Annelid worms, Mollusks, Echinoderms, & Arthropods