chordate

chordates include _____ and some ____

chordates include _____ and some ____

vertebrates; invertbrates

invertebrate include ____ and ____

sea squirts; lancelets

All chordates have ____(list 4) at some point in their life

dorsal nerve chord

notochord - attchment site for muscles

pharyngeal gil slits

post anal tail

lacelates and seasquirts feed by…

filter feeding

fish have a ___ chambered heart

2

Jawless fish inlclude….

hagfish and lampreys

cartilaginous (chondricthyes) fishes are marine _____; they include (list 3)….

predators; sharks, skates, and rays

cartilaginous fish have _______ fertilization

internal

ray-finned fish is distinguished by the structure of their…

fins

ray-finned fish have _____ made of bone

skeletons

most ray-finned fish have ___ for bouyancy; it evolved from ____.

a swim bladder; lungs

bony fish have _______ sexes; _____ fertilization

separate; external

lobe-fin fish gave rise to ____

tetrapods (us)

amphians have ___ chambered heart

3

amphians are _____ (4 limps)

tetrapods

amphians have small lungs; do gas exchange though ____

difussion

most amphians are tethered to the water to ____

reproduce

Reptiles first completely adapted to ____

land

Reptiles have keratnized ____

scales

reptiles have a large ____ with expandable ribcage

lung

reptiles evolved an____ egg

amniotic

reptilian gender is dictated by ____

temperature

reptiles are ectotherms which means…

cold blooded

reptiles have “___” chambered heart

3.5

archaeopteryx (the earliest known bird) is a…..

transitional fossil

birds are feathered ____

reptiles

birds are endothermic whihc means..

warm blooded

birds have a ___ chambered heart

4

birds have ____ fetilization and a ___ egg

internal; shelled

mammals are ____ blooded

warm

mammals evolved….

200mya

mammals have ______ teeth

differientiated

mammaliian infants are ____ on their parents

dependents

mammals have ___ chambered heart

4

infant mammals have ____ development

internal

monotremes are ___ mammal

egg laying

the monotremes include…

platapus and spiny anteater

mono tremes have ____ glands but no ____

mammary; nipple

masupial embryos devlop in the ___ for a short period

uterus

marsupial devlopment occurs in the…

post birth pouch

Placental mammals are dependent on…

parental care