BIO 1108 EXAM REVIEW QUESTIONS AND
ANSWERS A+ GRADED
Classification system groupings in order
Domain, Kingdom, Phylum, Class, Order, Family, Genus, and Species
Anatomical difference between vertebrates and invertebrates?
Vertebrates have a backbone, invertebrates do not. 95% of animals are invertebrates
What does the term protosome mean?
The first opening in the embryo becomes the mouth
What does the term deuterostome mean?
Animals develop an anus before a mouth; "second mouth"
define coelomate
a fluid-filled body cavity that cushions and supports the animal's internal organs; lined
with tissue from mesoderm
Define acoelomate
no body cavity; no celium
Define pseudocoelomate
do not have a true body cavity, but appear to have a fluid-filled region, however the cells
lining the space are not continuous and do not surround the space
EX: roundworm
Define asymmetry
no symmetry; lack of equality or equivalence
Define radial symmetry
Not just one way to cut; symmetry around a central axis. Example: starfish, tulip flower
Define bilateral symmetry
Mirror imaging; divisible into symmetrical halves on either side of a unique plane
examples: humans, animals
What two phyla animal groups have radial symmetry?
Phylum Cnidaria - stinging animals; jellyfish
Phylum Ctenophora - do not sting
Phylum Echinodermata- sea urchins, sea stars
What phyla animal groups have bilateral symmetry?
Phylum Chordata- lancelets
Phylum Annelida- earthworm
Phylum Arthropoda- crawfish
And most Mollusca- chitons, gastropods, bivalves, cephalopods
How does someone get the parasite that causes trichinosis?
eating raw or undercooked meat that is infected with larvae of a roundworm parasite
How do pets get heart worms and what phylum do heart worms belong to?
Infected mosquitos biting them, introducing heart worm larvae into their blood stream.
Heart worms belong in phylum nematoda
How do people and peers get hookworms?
ANSWERS A+ GRADED
Classification system groupings in order
Domain, Kingdom, Phylum, Class, Order, Family, Genus, and Species
Anatomical difference between vertebrates and invertebrates?
Vertebrates have a backbone, invertebrates do not. 95% of animals are invertebrates
What does the term protosome mean?
The first opening in the embryo becomes the mouth
What does the term deuterostome mean?
Animals develop an anus before a mouth; "second mouth"
define coelomate
a fluid-filled body cavity that cushions and supports the animal's internal organs; lined
with tissue from mesoderm
Define acoelomate
no body cavity; no celium
Define pseudocoelomate
do not have a true body cavity, but appear to have a fluid-filled region, however the cells
lining the space are not continuous and do not surround the space
EX: roundworm
Define asymmetry
no symmetry; lack of equality or equivalence
Define radial symmetry
Not just one way to cut; symmetry around a central axis. Example: starfish, tulip flower
Define bilateral symmetry
Mirror imaging; divisible into symmetrical halves on either side of a unique plane
examples: humans, animals
What two phyla animal groups have radial symmetry?
Phylum Cnidaria - stinging animals; jellyfish
Phylum Ctenophora - do not sting
Phylum Echinodermata- sea urchins, sea stars
What phyla animal groups have bilateral symmetry?
Phylum Chordata- lancelets
Phylum Annelida- earthworm
Phylum Arthropoda- crawfish
And most Mollusca- chitons, gastropods, bivalves, cephalopods
How does someone get the parasite that causes trichinosis?
eating raw or undercooked meat that is infected with larvae of a roundworm parasite
How do pets get heart worms and what phylum do heart worms belong to?
Infected mosquitos biting them, introducing heart worm larvae into their blood stream.
Heart worms belong in phylum nematoda
How do people and peers get hookworms?
