Develop a DICHOTOMOUS KEY to the CLASSES of Phylum ECHINODERMATA: Class Asteroidea (specimen: Linkia (blue sea star)), Class Ophiuroidea (specimen: Ophiotrix (brittle star)), Class Echinoidea (specimen: Diadema (black sea urchin)), & Class Holothuroidea (specimen: Holothuria (sea cucumber))
BIOLOGY: Major Animal Phyla
After examining the different specimens, construct a dichotomous key to the different phyla.
1. Develop a DICHOTOMOUS KEY to the CLASSES of Phylum
ECHINODERMATA:
Class Asteroidea (specimen: Linkia (blue sea star)),
Class Ophiuroidea (specimen: Ophiotrix (brittle star)),
Class Echinoidea (specimen: Diadema (black sea urchin)), &
Class Holothuroidea (specimen: Holothuria (sea cucumber))
2. Develop a DICHOTOMOUS KEY to the CLASSES of Subphylum
VERTEBRATA;
Class Amphibia (specimen: Rhinella marina (toad)),
Class Reptilia (specimen: Coura amboinensis (turtle), Hemidactylus (house
lizard), Elaphe erythrura (snake)),
Class Aves (specimen: Gallus gallus (chicken)),
Class Mammalia (specimen: Homo sapiens (human))
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