chordates - created from Mind Map

Seite 1

urochordates

hemichordates

cephalochordates

vertebrates

pisces<br><br><ul><li>1.aquatic

2.coldblooded

3.streamlined body with scales

4.paired fins for locomotion &amp;amp; balancing

5.gills for respiration

6.2 chambered heart

7.oviparous

8.nervous sys of brain,spinal cord &amp;amp; 10 pairs of cranial nerves</li></ul>

amphibians<br><br><ul><li>1.cold blooded

2.tail absent in adult

3.no exoskeleton

4.forelimbs &amp;amp; hindlimbs for locomotion

5.respiration-gills in larvae &amp;amp; lungs in adult + skin

6.3 chambered heart

6.oviparous

7.nervous sys as pisces

8.external fertilization &amp;amp; metamorphosis

eg; frog,salamander

-</li></ul>

reptiles

mammals<br><br><ul><li>1.warm blooded

2.mammary glands present

3.exoskeleton-hair

4.pentadactyl limbs with claws or nails

5.4 chambered heart;enucleate RBC except camels

6.repiration-lungs

7.teeth-heterodont,thecodont,diphyodont

8.viviparous;internal fertilization &amp;amp; internal development</li></ul>

aves<br><br><ul><li>1.streamlined body

2.exoskeleton of feathers

3.warm blooded

4.pentadactyl limbs;forelimbs modified to wings

5.oviparous

6.respiration-lungs

7.4 chambered heart

8.well developed brain -12 pairs craniial nerves

9.internal fertilization &amp;amp; external development</li></ul>

cartilaginous<br><br><ul><li>endoskeleton formed of cartilage

eg;shark,ray fish</li></ul>

bony<br><br><ul><li>endoskeleton formed of bones

eg; labeo, carp</li></ul>

chelones

lizards

snakes

egg laying<br><br><ul><li>eg; platypus,echidna</li></ul>

pouched<br><br><ul><li>kangaroo,opposums</li></ul>

placental<br><br><ul><li>flying;bat

aquatic-whales

carnivores-lion

herbivore-deer,cow

primate-human,monkeys</li></ul>

flying<br><br><ul><li>eg; parrot, crow</li></ul>

flightless<br><br><ul><li>eg; emu,ostrich,kiwi</li></ul>