animal diversity Flashcards
a pseudocoelome is found in which phylum
nematoda
which phylum have only one opening to the digestive tract ( no anus)
cnidaria and platyhelminthes
are roundworms or earthworms members of phylum platyhelminthes
no, but flukes and tapeworms are
in which phylum do we see muscles and nerves in their simplest forms
cnidaria - jellyfish
what are two characteristics of vertebrates
pharyngeal (gill) slits
dorsal hollow nerve cord
which vertebrate does not posses an amniotic egg
fish
amphibians
what is the only taxonomic category that exists in nature
species
how do animals that live in water dispose of nitrogenous wastesv
ammonia (NH3) is released across the body surface or gills
how do animals that do not live in water dispose of nitrogenous waste
converting to urea
how do reptiles and bords dispose of nitrogenous waste
uric acid
what are the three domains of life
bacteria
archaea
eurkarya
what is bilateral symmetry
two lined symmetry ( complex)
what is radial symmetry
symmetry around a central point - 1 line (simple)
what three germ layers give rise to the tissues and organs of the animal embryo
mesoderm
ectoderm
endoderm
what is a protist
single celled (unicellular) eukaryotic organisms that arent plants, animals or fungi
protozoans, algae and fungus are like protist
how do amoebas move
pseudopodia (false feet)