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BIO 182 Exam 4 review Questions with Accurate Answers
BIO 182 Exam 4 review Questions with Accurate Answers
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BIO 182 Exam 4 review Questionswith Accurate Answers
What are some commone characteristics of animals? - -multicellular
heterotrophs
lack of cell walls
nervous tissue
sexual reproduction
Hox genes
-What life cycle does all animal show? - -gametic
-What are the likely ancestors of animals? - -chaonoflagellates protists
-What are 3 major features to classify animals? - -1. presence or absense of
different tissue types
2. type of body symmetry
3. specific features of embryonic development
-What are the 3 different type of tissues (ends in zoas)? - -metazoa
parazoa
eumetazoa
-Where are metazoa seen? - -in all animals
-What are parazoa? - -without specialized tissues/organs
-What are eumetazoa? - -more than 1 type of tissue/organs
-What are the two types of body symmetry? - -radial
bilateral
-What are the two types of embryonic development? - -protostoma
deuterstoma
-What does the blastopore develop into in protostoma? - -mouth
-What does the blastopore develop into in deuterstoma - -anus
-What is the focused gene for molecular analysis? - -small subunit ribosomal
RNA
-What are the two new invertebrate clades? - -Ecdysozoa
Lophotrochozoa
, -What are some animals that are in Ecdysozoa and what does this clade
mean? - -nematodes and arthropods
molting
-What are some animals and features in Lophotrochozoa? - -mollusks and
annelids
feeding tentacles
trochophore larva
-What are characteristics in Ponifera? - -lack of true tissues
filter feed
-What are characteristics in Cnidaria? - -radial, nemocysts, polyp vs
medusa, 1 opening
-What are characteristics in Ctenophora? - -1st complete gut
-What are characteristics in Platyhelminthes? - -bilateral, eye spots and
beginnings of a brain
-What are characteristics in Rotifera? - -complete tract, parthenogenesis
-What are characteristics in Bryozoa? - -looks like plants
about 4,000 species
-What are characteristics in Brachiopoda? - -2 shells
300 species
-What are characteristics in Annelids? - -internal fertilization, segmented
worms
-What are characteristics in Mollusca? - -over 100,000 species
visceral mass, foot, mantle
-What are characteristics in Nematoda? - -parasitic worms
skeleton and circulatory system
-What are characteristics in Arthropoda? - -3/4 of all living species
tagmata
wings
-What are characteristics in Echinodermata? - -water vascular system
no brain
-What are characteristics in Chordata? - -notochord
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