vertebrates. vertebrates classification domain: eukarya kingdom:anamilia phylum:chordata...
TRANSCRIPT
VERTEBRATES
VertebratesClassificationDomain: Eukarya
Kingdom: Anamilia
Phylum: Chordata
Subphylums: Cephalochordata
Urochordata
Vertebrata
CLASSIFICATION OF ANIMALS - MAJOR PHYLA
I. PHYLUM CHORDATA
1. Characteristics a. Bilateral symmetry
b. Coelom - 3 tissue layers
c. Single, dorsal nerve cord
d. Notochord
e. Gill slits
f. tail
Figure 34.2 Chordate characteristics
Classification
Subphylums:
•Cephalochordata
– Lancelets
•Urochordata
–Tunicates
•Vertebrata
– animals with back bones
Vertebrates
Subphylum Vertebrata
•Fish (3 Classes)
•Amphibia
•Reptiles (2 Classes)
•Aves
•Mammalia
Vertebrates
VertebratesVertebrata
•Fish
– ectothermic
– 2 chambered heart
– sexual reproduction
– scales covering body
– *first to have jaws*
VertebratesVertebrata
•Amphibia
– ectothermic
– live in water and *moist land*– metamorphosis
•egg -> tadpole -> adult
– walking
– 3 chambered heart
– *some have lungs*,
some breathe through
skin -> soft moist skin
VertebratesVertebrata
•Reptiles
– ectothermic
– aquatic & terrestrial
•*can live on dry land*
– scales (made of keratin)
– reproduce on land (leathery eggs)
– some have a 4 chambered heart
VertebratesVertebrata
•Reptiles
VertebratesVertebrata
•Aves
– *endothermic*
– covered in feathers
– lay eggs (hard shell)
– have scales on legs
– 4 chambered heart
– terrestrial habitats
VertebratesVertebrata
•Aves
VertebratesVertebrata
•Mammalia
– endothermic
– covered in hair
– *nurse their young*
•mammary glands produce milk
– 4 chambered hearts
– modified limbs
– aquatic and terrestrial
– lay eggs, finish development in pouches, birth fully developed animals
VertebratesVertebrata
•Mammalia
III. ADAPTATIONS IN ANIMALSA. Behavior
1. Anything an animal does in response to a stimuli in its environment
2. Innate Behavior
3. Learned Behavior
B. Defense
1. Mechanical
2. Chemical
3. Camouflage