BIO 106 EXAM 3 CARLOYE
QUESTIONS & VALID ANSWERS
Which animals rely on filter feeding? - Correct Answer ✔✔ Porifera
What two traits allowed the arthropods to diversify so much? - Correct Answer ✔✔
Segmentation and jointed appendages
Give some examples of tagma in arthropods. - Correct Answer ✔✔ sensory,
locomotion, and organ systems
What is an arthropod's exoskeleton made out of? - Correct Answer ✔✔ cuticle made up
of chitin
Having an exoskeleton means the animal must molt in order to grow. Explain what
molting is. - Correct Answer ✔✔ Molting is shedding the old shell to make way for the
new growth
What is the difference between determinate and indeterminate growth? - Correct
Answer ✔✔ Determinate growth is when there is an ending point of molting (insects).
Indeterminate growth is when the creature keeps molting and growing (crabs).
What are the major groups of arthropods? - Correct Answer ✔✔ trilobites, chelicerata,
myriapoda, and pancrustacea
Describe complete vs. incomplete metamorphosis. - Correct Answer ✔✔ Complete is
when the larvae stage looks entirely different from the adult stage; includes a pupal
stage.
Incomplete is when larvae resemble the adults; molt until they reach maturity.
The echinoderms exhibit pentaradial body plans so why are they included in the
Bilateral animals (the "Bilateria")? - Correct Answer ✔✔ As larvae these enchinoderms
had bilateral symmetry. Once they become adults is when they become pentaradial.
What are the three subgroups of Chordata (both scientific and common names for two)?
- Correct Answer ✔✔ Urochordates (Invertebrate), Cephalochordates, and Vertebrata
chordates
Which are the "invertebrate" chordates? - Correct Answer ✔✔ sea squirts (tunicate) and
lancelets
, know what it is, what it does, who has it: Spongocoel - Correct Answer ✔✔ Space for
water flow to end up going out. Found in the porifera.
know what it is, what it does, who has it: Spicule - Correct Answer ✔✔ Form scaffold
that gives sponge shape. Found in porifera.
know what it is, what it does, who has it: Parenchyma - Correct Answer ✔✔ Tugor
pressure for movement. Found in the platyhelminthes.
know what it is, what it does, who has it: Medusa - Correct Answer ✔✔ Mature stage
where can reproduce to make sperm and eggs combine to make a polyp. Found in the
cnidaria
know what it is, what it does, who has it: Tube feet - Correct Answer ✔✔ Used to move
and feed because of the secretion of adhesive chemicals. Found in the echinderm.
know what it is, what it does, who has it: Mantle & mantle cavity - Correct Answer ✔✔
Fold of tissue that drapes over the visceral mass and secretes a shell. Found in the
mollusca.
know what it is, what it does, who has it: Chelicerae - Correct Answer ✔✔ Claw like
mouthparts. Found in arthropods (Chelicerates).
know what it is, what it does, who has it: Pentaradial body plan - Correct Answer ✔✔ A
type of symmetry in adults. Found in enchinoderms.
know what it is, what it does, who has it: Notochord - Correct Answer ✔✔ Discs
between the vertebrates for support. Found in the Chordata.
know what it is, what it does, who has it: Osculum - Correct Answer ✔✔ Opening for
water release. Found in the porifera.
know what it is, what it does, who has it: Cnidocyte - Correct Answer ✔✔ Special cells
that contain the nematocysts to capture prey or for defense. Found in the cnidaria.
know what it is, what it does, who has it: Gastrovascular cavity - Correct Answer ✔✔
Single sac opening for food and waste. Found in the cnidaria.
know what it is, what it does, who has it: Polyp - Correct Answer ✔✔ Anchors to
structures and looks like a backward umbrella; developing stage. Found in the cnidaria.
know what it is, what it does, who has it: Parapodia - Correct Answer ✔✔ ********
know what it is, what it does, who has it: Visceral mass - Correct Answer ✔✔ Contains
most of the internal organs. Found in the mullusca.
QUESTIONS & VALID ANSWERS
Which animals rely on filter feeding? - Correct Answer ✔✔ Porifera
What two traits allowed the arthropods to diversify so much? - Correct Answer ✔✔
Segmentation and jointed appendages
Give some examples of tagma in arthropods. - Correct Answer ✔✔ sensory,
locomotion, and organ systems
What is an arthropod's exoskeleton made out of? - Correct Answer ✔✔ cuticle made up
of chitin
Having an exoskeleton means the animal must molt in order to grow. Explain what
molting is. - Correct Answer ✔✔ Molting is shedding the old shell to make way for the
new growth
What is the difference between determinate and indeterminate growth? - Correct
Answer ✔✔ Determinate growth is when there is an ending point of molting (insects).
Indeterminate growth is when the creature keeps molting and growing (crabs).
What are the major groups of arthropods? - Correct Answer ✔✔ trilobites, chelicerata,
myriapoda, and pancrustacea
Describe complete vs. incomplete metamorphosis. - Correct Answer ✔✔ Complete is
when the larvae stage looks entirely different from the adult stage; includes a pupal
stage.
Incomplete is when larvae resemble the adults; molt until they reach maturity.
The echinoderms exhibit pentaradial body plans so why are they included in the
Bilateral animals (the "Bilateria")? - Correct Answer ✔✔ As larvae these enchinoderms
had bilateral symmetry. Once they become adults is when they become pentaradial.
What are the three subgroups of Chordata (both scientific and common names for two)?
- Correct Answer ✔✔ Urochordates (Invertebrate), Cephalochordates, and Vertebrata
chordates
Which are the "invertebrate" chordates? - Correct Answer ✔✔ sea squirts (tunicate) and
lancelets
, know what it is, what it does, who has it: Spongocoel - Correct Answer ✔✔ Space for
water flow to end up going out. Found in the porifera.
know what it is, what it does, who has it: Spicule - Correct Answer ✔✔ Form scaffold
that gives sponge shape. Found in porifera.
know what it is, what it does, who has it: Parenchyma - Correct Answer ✔✔ Tugor
pressure for movement. Found in the platyhelminthes.
know what it is, what it does, who has it: Medusa - Correct Answer ✔✔ Mature stage
where can reproduce to make sperm and eggs combine to make a polyp. Found in the
cnidaria
know what it is, what it does, who has it: Tube feet - Correct Answer ✔✔ Used to move
and feed because of the secretion of adhesive chemicals. Found in the echinderm.
know what it is, what it does, who has it: Mantle & mantle cavity - Correct Answer ✔✔
Fold of tissue that drapes over the visceral mass and secretes a shell. Found in the
mollusca.
know what it is, what it does, who has it: Chelicerae - Correct Answer ✔✔ Claw like
mouthparts. Found in arthropods (Chelicerates).
know what it is, what it does, who has it: Pentaradial body plan - Correct Answer ✔✔ A
type of symmetry in adults. Found in enchinoderms.
know what it is, what it does, who has it: Notochord - Correct Answer ✔✔ Discs
between the vertebrates for support. Found in the Chordata.
know what it is, what it does, who has it: Osculum - Correct Answer ✔✔ Opening for
water release. Found in the porifera.
know what it is, what it does, who has it: Cnidocyte - Correct Answer ✔✔ Special cells
that contain the nematocysts to capture prey or for defense. Found in the cnidaria.
know what it is, what it does, who has it: Gastrovascular cavity - Correct Answer ✔✔
Single sac opening for food and waste. Found in the cnidaria.
know what it is, what it does, who has it: Polyp - Correct Answer ✔✔ Anchors to
structures and looks like a backward umbrella; developing stage. Found in the cnidaria.
know what it is, what it does, who has it: Parapodia - Correct Answer ✔✔ ********
know what it is, what it does, who has it: Visceral mass - Correct Answer ✔✔ Contains
most of the internal organs. Found in the mullusca.
