Classification II

Humans can be described as:

• vertebrates

• chordates

• mammals

• All are true

Fishes, amphibians, and reptiles are all classified as the following except:

• vertebrates

• ectothermic

• aquatic

• all are true

The squid is one of the largest invertebrate mollusks and belongs to which class?

• cephalopods

• bivalves

• gastropods

• arthropods

All of the following are domains except:

• bacteria

• protists

• archaea

• eukarya

____________ are a class of vertebrate animals that begin life in water, undergo metamorphosis, and develop to survive in terrestrial and aquatic habitats.

• amphibians

• keratin

• exoskeleton

• worms

Feathers, hair, or horns are all made of a protein called:

• exoskeleton

• worms

• amphibians

• keratin

Annelids (segmented), platyhelminths (flat), and nematodes (round) are all different phyla of

• exoskeleton

• worms

• amphibians

• keratin

The vast majority of animals in the world are classified as:

• vertebrates

• invertebrates

Starfish have what kind of symmetry:

• bilaterial

• radical

Birds and mammals are considered:

• endothermic

• ectothermic