BIO 1104 Lab Final Exam Study Guide
Questions with Correct Answers
2025-2026
Invertebrate fossils CORRECT ANSWER no backbone, shells
Vertebrate fossils CORRECT ANSWER backbone
Plant fossils CORRECT ANSWER leaves, random shape
Homologous structures CORRECT ANSWER
anatomical similarities between organisms. Common ancestor
Analogous structures CORRECT ANSWER
various structures in different species having the same function but have evolved separately. N
o common ancestor
Vertebrate embryo structures CORRECT ANSWER fish: fin bud
Reptile and bird: ear, limb bud
Bilateral symmetry CORRECT ANSWER animal has a definite left and right side
Radical symmetry CORRECT ANSWER symmetry found around a central axis. Starfish
Bilateral symmetry phyla & 3 germ layers CORRECT ANSWER
chordates, echinoderms (different in larvae form), arthropods, roundworms, annelids, molluscs
, flatworms, rotifers, lophophorates
, Radical symmetry phyla & 2 germ layers CORRECT ANSWER comb jellies, cnidarians
Sponge anatomy CORRECT ANSWER y shape
Hydra (cnidarians) CORRECT ANSWER
Jellyfish CORRECT ANSWER
Function of cnidocytes CORRECT ANSWER
specialized stinging cells; led to name of the phylum
Medusa CORRECT ANSWER free floating; best exemplified by marine jelly
Polyp CORRECT ANSWER
attached; cylindrical with tentacles projecting from one end (hydras and sea anemones)
Planarian CORRECT ANSWER
Tapeworm anatomy CORRECT ANSWER
Planarian characteristics CORRECT ANSWER
ciliated epidermis; head with eye spots and auricles; nerves and brain (nervous system); branc
hed (digestive organ); hermaphroditic
Tapeworm characteristics CORRECT ANSWER
body wall specialized for absorption; scolex with hooks and suckers, reduced nervous system, a
bsent digestive organ; extensively developed reproductive organs
Questions with Correct Answers
2025-2026
Invertebrate fossils CORRECT ANSWER no backbone, shells
Vertebrate fossils CORRECT ANSWER backbone
Plant fossils CORRECT ANSWER leaves, random shape
Homologous structures CORRECT ANSWER
anatomical similarities between organisms. Common ancestor
Analogous structures CORRECT ANSWER
various structures in different species having the same function but have evolved separately. N
o common ancestor
Vertebrate embryo structures CORRECT ANSWER fish: fin bud
Reptile and bird: ear, limb bud
Bilateral symmetry CORRECT ANSWER animal has a definite left and right side
Radical symmetry CORRECT ANSWER symmetry found around a central axis. Starfish
Bilateral symmetry phyla & 3 germ layers CORRECT ANSWER
chordates, echinoderms (different in larvae form), arthropods, roundworms, annelids, molluscs
, flatworms, rotifers, lophophorates
, Radical symmetry phyla & 2 germ layers CORRECT ANSWER comb jellies, cnidarians
Sponge anatomy CORRECT ANSWER y shape
Hydra (cnidarians) CORRECT ANSWER
Jellyfish CORRECT ANSWER
Function of cnidocytes CORRECT ANSWER
specialized stinging cells; led to name of the phylum
Medusa CORRECT ANSWER free floating; best exemplified by marine jelly
Polyp CORRECT ANSWER
attached; cylindrical with tentacles projecting from one end (hydras and sea anemones)
Planarian CORRECT ANSWER
Tapeworm anatomy CORRECT ANSWER
Planarian characteristics CORRECT ANSWER
ciliated epidermis; head with eye spots and auricles; nerves and brain (nervous system); branc
hed (digestive organ); hermaphroditic
Tapeworm characteristics CORRECT ANSWER
body wall specialized for absorption; scolex with hooks and suckers, reduced nervous system, a
bsent digestive organ; extensively developed reproductive organs
