Biology 1407 exam 4
Acoelomate - ANS-Lack a frame cavity among digestive cavity (from endoderm) and outer
body wall (ectoderm). Ex: planarians
Archenteron - ANS-Blind pouch shaped by gastrulation opens to the out of doors via
blastopore. Becomes the gut.
Bilateral symmetry - ANS-Divided along the vertical plane at the midline to create 2 halves.
Usually fairly motile with CNS. Bilateria show off.
Blastopore - ANS-Opening of archenteron that generally develops into the anus in
deuterostomes and the mouth in protostomes.
Blastula - ANS-Multicellular, hole-ball stage that surround a cavity referred to as blastocoel.
Cambrian explosion - ANS-Phanerozoic eon, paleozoic technology. 542-251mya. Most
fossils bilaterians. Cause of explosion/decline of Ediacaran = new predator-prey
relationships, a upward push in temperature, evolution of the Hox gene complex.
Cenozoic technology - ANS-65.Five mya-present. Followed mass extinctions of each
terrestrial big, nonflying dinos and marine reptiles, mammals extended in size, international
weather cooled.
Cephalization - ANS-Evolutionary trend toward a clustering of sensory neurons and
interneurons on the anterior (the front) end of the body. Animals that show off this have
elongated, bilaterally symm. Our bodies.
Characteristics of Animals - ANS-1. Cells lack mobile partitions
2. Capacity to transport sooner or later in existence cycle
three. Ability to breed sexually
4. Specialized sensory systems and anxious machine
5. Cells exist in huge extracellular matrix (collagen) and feature precise mobile junctions
6. Tissues present that expand from embryonic layers
Cleavage - ANS-After a sperm fertilizes an egg, the zygote undergoes mitotic cell divisions
with out mobile growth between the divisions. Leads to formation of blastula.
Coelom (frame cavity) - ANS-True body hollow space is absolutely lined with and derived
from mesoderm (coelomates/triploblastic animals). Fluid or air crammed area located among
digestive tract and outer body wall.
Coelomate - ANS-Have a true coelom, a frame hollow space completely coated by using
tissue derived from mesoderm. Ex: earthworms
Complete digestive tract - ANS-Specialized for different capabilities. Digestive tract with
openings where one starting is the mouth and the opposite is the anus. Ex: pharynx,
esophagus, crop, gizzard, gut.
Deuterostome - ANS-Sea urchins and different animals in which the mouth develops from
the second opening of the embryo
Deuterostome improvement - ANS-1. Cleavage - radial and indeterminate
2. Coelom formation - Entercoely: folds of archenteron form coelom
3. Fate of blastopore - anus develops from blastopore
Deuterostomia - ANS-1. Echinodermata, Chordata (vertebrates)
2. Coelomate
three. Bilateral
Acoelomate - ANS-Lack a frame cavity among digestive cavity (from endoderm) and outer
body wall (ectoderm). Ex: planarians
Archenteron - ANS-Blind pouch shaped by gastrulation opens to the out of doors via
blastopore. Becomes the gut.
Bilateral symmetry - ANS-Divided along the vertical plane at the midline to create 2 halves.
Usually fairly motile with CNS. Bilateria show off.
Blastopore - ANS-Opening of archenteron that generally develops into the anus in
deuterostomes and the mouth in protostomes.
Blastula - ANS-Multicellular, hole-ball stage that surround a cavity referred to as blastocoel.
Cambrian explosion - ANS-Phanerozoic eon, paleozoic technology. 542-251mya. Most
fossils bilaterians. Cause of explosion/decline of Ediacaran = new predator-prey
relationships, a upward push in temperature, evolution of the Hox gene complex.
Cenozoic technology - ANS-65.Five mya-present. Followed mass extinctions of each
terrestrial big, nonflying dinos and marine reptiles, mammals extended in size, international
weather cooled.
Cephalization - ANS-Evolutionary trend toward a clustering of sensory neurons and
interneurons on the anterior (the front) end of the body. Animals that show off this have
elongated, bilaterally symm. Our bodies.
Characteristics of Animals - ANS-1. Cells lack mobile partitions
2. Capacity to transport sooner or later in existence cycle
three. Ability to breed sexually
4. Specialized sensory systems and anxious machine
5. Cells exist in huge extracellular matrix (collagen) and feature precise mobile junctions
6. Tissues present that expand from embryonic layers
Cleavage - ANS-After a sperm fertilizes an egg, the zygote undergoes mitotic cell divisions
with out mobile growth between the divisions. Leads to formation of blastula.
Coelom (frame cavity) - ANS-True body hollow space is absolutely lined with and derived
from mesoderm (coelomates/triploblastic animals). Fluid or air crammed area located among
digestive tract and outer body wall.
Coelomate - ANS-Have a true coelom, a frame hollow space completely coated by using
tissue derived from mesoderm. Ex: earthworms
Complete digestive tract - ANS-Specialized for different capabilities. Digestive tract with
openings where one starting is the mouth and the opposite is the anus. Ex: pharynx,
esophagus, crop, gizzard, gut.
Deuterostome - ANS-Sea urchins and different animals in which the mouth develops from
the second opening of the embryo
Deuterostome improvement - ANS-1. Cleavage - radial and indeterminate
2. Coelom formation - Entercoely: folds of archenteron form coelom
3. Fate of blastopore - anus develops from blastopore
Deuterostomia - ANS-1. Echinodermata, Chordata (vertebrates)
2. Coelomate
three. Bilateral
