BIO 182 EXAM 4 NAU QUESTIONS &
ANSWERS (RATED A)
According to research, the closest living relative of animals is believed to be a
flagellated protist known as - ANSWERchoanoflagellate.
anatomical features belonging to Radata include - ANSWERpresences of
specialized tissue, two germ layers, circular or tubular shape with mouth parts at one
end
oviparity - ANSWERthey lay eggs, often inside a protective pouch called a mermaid's
purse
ovoviparity - ANSWERa process by which fertilized eggs are retained within the
female; the embryo obtains its nourishment from the egg's yolk, and the young are
fully developed when they are hatched
Viviparity - ANSWERthe eggs develop within the uterus, receiving nourishment from
the mother via a placenta
osteichthyans - ANSWERMember of a vertebrate clade with jaws and mostly bony
skeletons.
Animals belonging to the group Bilateria exhibit what anatomical characteristics? -
ANSWERdorsal and ventral side, and anterior and posterior end, cephalization
What are germ layers? - ANSWERectoderm, mesoderm, endoderm: cell layers in
embryo
during development, an area of a blastula folds inward, or invaginates also known as
process called - ANSWERgastrula
in developing embryo, there is an opening to digestive track that can become the
mouth or anus is called - ANSWERblastopore
the blastopore becomes the mouth - ANSWERprotostome
he blastopore becomes the anus, - ANSWERdueterstomes
characteristics of the vertebraes includes - ANSWERvertebral column, endoskeleton
of bone or cartilage, multiple clusters of hox genes and a cranium
vertebrae endoskeleton is made up of - ANSWERcartilage or bone
ANSWERS (RATED A)
According to research, the closest living relative of animals is believed to be a
flagellated protist known as - ANSWERchoanoflagellate.
anatomical features belonging to Radata include - ANSWERpresences of
specialized tissue, two germ layers, circular or tubular shape with mouth parts at one
end
oviparity - ANSWERthey lay eggs, often inside a protective pouch called a mermaid's
purse
ovoviparity - ANSWERa process by which fertilized eggs are retained within the
female; the embryo obtains its nourishment from the egg's yolk, and the young are
fully developed when they are hatched
Viviparity - ANSWERthe eggs develop within the uterus, receiving nourishment from
the mother via a placenta
osteichthyans - ANSWERMember of a vertebrate clade with jaws and mostly bony
skeletons.
Animals belonging to the group Bilateria exhibit what anatomical characteristics? -
ANSWERdorsal and ventral side, and anterior and posterior end, cephalization
What are germ layers? - ANSWERectoderm, mesoderm, endoderm: cell layers in
embryo
during development, an area of a blastula folds inward, or invaginates also known as
process called - ANSWERgastrula
in developing embryo, there is an opening to digestive track that can become the
mouth or anus is called - ANSWERblastopore
the blastopore becomes the mouth - ANSWERprotostome
he blastopore becomes the anus, - ANSWERdueterstomes
characteristics of the vertebraes includes - ANSWERvertebral column, endoskeleton
of bone or cartilage, multiple clusters of hox genes and a cranium
vertebrae endoskeleton is made up of - ANSWERcartilage or bone
