Animal Diversity 3 Flashcards
(23 cards)
Deuterostome derived trait
Radial, intermediate cleavage
Coelum forms from archeon
Echinodermata stands for
Spiny skin
Animals in phylum echinodermata
Sea stars, sea urchin, sand dollars
Derived trait of echinodermata
Endoskeleton made of calcium carbonate
KEY Derived trait of echinodermata
Water vascular system
Vertebrates derived trait
Bone or cartilage vertebrae
2+ HOX clusters
WHY 2+ HOX clusters?
More genetic complexity = complex body plans
Basal vertebrates are called
“jawless fish”
Gnathostomes traits
Hinged jaw
Bony skeleton that’s mostly lost
Osteichthyes derived trait
Lungs
Swim bladder
Lobe fins derived traits
Muscular fins
Tetrapod traits
4 limbs with digits
Neck
Fused pelvic girdle
Amniotes derived trait
Rib cage ventilation
What is amion
Me,brand that forms fluid filled sac around embryo
Derived traits of MAMMALS
Mammary glands
Live birth
Hair, fat layer
3 types of mammals
Monotremes
Marsupials
Eutherians
Monotremes traits
lay eggs
no nipples
Marsupials traits
Live birth
have nipples
placenta
Eutherian traits
COMPLETE embryonic development in uterus
Primate derived traits (5)
Large brain, short jaws
Grasping hands
Foward facing eyes
High parental care
Complex social behavior
Hominids are…
species on the HUMAN side of human-chimp divergence
Humans are genus…
homosapien
Homosapien derived traits (6)
bigger brains
complex tools
fully bipedal traits
small jaw
short digestive system
language & symbolic thought
