BIO 152 Unit 3 Exam UPDATED Exam
Questions and CORRECT Answers
95% of the animal kingdom is - CORRECT ANSWER - invertebrates
metazoa consists of - CORRECT ANSWER - all animals
eumetazoa is a clade of animals with - CORRECT ANSWER - true tissues
characteristics of bilateria - CORRECT ANSWER - animals with bilateral symmetry and
are triploblastic
if an animal undergoes gastrulation, it means that they form - CORRECT ANSWER -
germ layers
3 types of body caviti - CORRECT ANSWER - acoelomate, pseudocoelomate, coelomate
2 fates of blastopores - CORRECT ANSWER - protosomes and deuterosomes
digestive compartment with one opening- food comes in and out of the one opening - CORRECT
ANSWER - incomplete/gastrovascular cavity
digestive tract with 2 seperate openings- one way flow of food - CORRECT ANSWER -
complete/alimentary canal
this type of digestive system allows for animals to eat more, more nutrient absorption, 1 way
flow of food, and can contain a specialized digestive organ - CORRECT ANSWER -
complete/alimentary canal
,open circulatory system pumps - CORRECT ANSWER - hemolymph
closed circulatory system pumps - CORRECT ANSWER - blood
is there mixing of blood and interstitial fluid in a closed circulatory system - CORRECT
ANSWER - no
is there mixing of hemolymph and interstitial fluids in an open circulatory system - CORRECT
ANSWER - yes
which circulatory system is more efficient for more active lifestyles/larger body sizes -
CORRECT ANSWER - closed circulatory system
germ layers for porifera - CORRECT ANSWER - none- not a eumetazoan so there are no
true tissues
do poriferia undergo gastrulation - CORRECT ANSWER - no
do porifera have a body cavity - CORRECT ANSWER - no
symmetry of porifera - CORRECT ANSWER - asymmetry
how do porifera feed - CORRECT ANSWER - filter feeding (suspension feeding)
function of choanocytes - CORRECT ANSWER - generate current and capture food
function of amoebocytes - CORRECT ANSWER - digest food and transport around the
sponge
, water is drawn through pores in sponges called the - CORRECT ANSWER - spongocoel
water is drawn out in sponges through an opening called the - CORRECT ANSWER -
osculum
all animals except for ___________ belong to eumetazoa - CORRECT ANSWER -
sponges (porifera)
oldest eumetazoans - CORRECT ANSWER - cnidarians
jellyfish, hydra, coral, sea anemone, etc. belong to - CORRECT ANSWER - cnidaria
germ layers of cnidarians - CORRECT ANSWER - 2 (Ecto/endo)
symmetry of cnidarians - CORRECT ANSWER - radial
do cnidarians have a body cavity - CORRECT ANSWER - no
do cnidarians undergo gastrulation - CORRECT ANSWER - yes
fate of blastopore in cnidarians - CORRECT ANSWER - becomes 1 opening
cnidaria feed via - CORRECT ANSWER - predation (carnivores)
cnidaria are found in ______________ forms - CORRECT ANSWER - aquatic, sessile,
and motile
two variations in cnidaria body plans - CORRECT ANSWER - polyp (sessile- UP)
Questions and CORRECT Answers
95% of the animal kingdom is - CORRECT ANSWER - invertebrates
metazoa consists of - CORRECT ANSWER - all animals
eumetazoa is a clade of animals with - CORRECT ANSWER - true tissues
characteristics of bilateria - CORRECT ANSWER - animals with bilateral symmetry and
are triploblastic
if an animal undergoes gastrulation, it means that they form - CORRECT ANSWER -
germ layers
3 types of body caviti - CORRECT ANSWER - acoelomate, pseudocoelomate, coelomate
2 fates of blastopores - CORRECT ANSWER - protosomes and deuterosomes
digestive compartment with one opening- food comes in and out of the one opening - CORRECT
ANSWER - incomplete/gastrovascular cavity
digestive tract with 2 seperate openings- one way flow of food - CORRECT ANSWER -
complete/alimentary canal
this type of digestive system allows for animals to eat more, more nutrient absorption, 1 way
flow of food, and can contain a specialized digestive organ - CORRECT ANSWER -
complete/alimentary canal
,open circulatory system pumps - CORRECT ANSWER - hemolymph
closed circulatory system pumps - CORRECT ANSWER - blood
is there mixing of blood and interstitial fluid in a closed circulatory system - CORRECT
ANSWER - no
is there mixing of hemolymph and interstitial fluids in an open circulatory system - CORRECT
ANSWER - yes
which circulatory system is more efficient for more active lifestyles/larger body sizes -
CORRECT ANSWER - closed circulatory system
germ layers for porifera - CORRECT ANSWER - none- not a eumetazoan so there are no
true tissues
do poriferia undergo gastrulation - CORRECT ANSWER - no
do porifera have a body cavity - CORRECT ANSWER - no
symmetry of porifera - CORRECT ANSWER - asymmetry
how do porifera feed - CORRECT ANSWER - filter feeding (suspension feeding)
function of choanocytes - CORRECT ANSWER - generate current and capture food
function of amoebocytes - CORRECT ANSWER - digest food and transport around the
sponge
, water is drawn through pores in sponges called the - CORRECT ANSWER - spongocoel
water is drawn out in sponges through an opening called the - CORRECT ANSWER -
osculum
all animals except for ___________ belong to eumetazoa - CORRECT ANSWER -
sponges (porifera)
oldest eumetazoans - CORRECT ANSWER - cnidarians
jellyfish, hydra, coral, sea anemone, etc. belong to - CORRECT ANSWER - cnidaria
germ layers of cnidarians - CORRECT ANSWER - 2 (Ecto/endo)
symmetry of cnidarians - CORRECT ANSWER - radial
do cnidarians have a body cavity - CORRECT ANSWER - no
do cnidarians undergo gastrulation - CORRECT ANSWER - yes
fate of blastopore in cnidarians - CORRECT ANSWER - becomes 1 opening
cnidaria feed via - CORRECT ANSWER - predation (carnivores)
cnidaria are found in ______________ forms - CORRECT ANSWER - aquatic, sessile,
and motile
two variations in cnidaria body plans - CORRECT ANSWER - polyp (sessile- UP)
