Unit A, Ch. 1 vocab.

vertebrate with dry, scaly skin

• amphibian

• reptile

• mammal

• mollusk

one-celled, no nuclei

• arthropods

• worms

• protists

• monerans

vertebrate that begins life in water

• reptile

• mammal

• amphibian

• arthropod

animal without a backbone

• vertebrate

• invertebrate

invertebrates that may or may not have a hard shell

• mollusks

• monerans

• arthropods

• protists

vertebrate that has fur and makes milk

• amphibian

• reptile

• mammal

• species

some one-celled with nuclei

• monerans

• protists

• arthropods

• mollusks

plants without tubes

• vascular

• nonvascular

invertebrates with legs and several joints

• arthropods

• mollusks

name of the smallest group

• genus

• species

• kingdom