Bio 111 Mcgill Final
What were animals derived from - CORRECT ANSWER-A common protist similar to
choanoflagellates
All animals have what in the extracellular matrix? - CORRECT ANSWER-Collagen and
proteoglycans
Animals likely expanded during what era? - CORRECT ANSWER-Cambrian Explosion
All animals share what type of gene? - CORRECT ANSWER-Hox genes
Sponge body shapes - CORRECT ANSWER-Highly Variable and Asymmetrical, but still
the basic shape of a pore
how does water get out of a sponge? - CORRECT ANSWER-Through the Osculum
(Oust--Osculum)
How do water and food get into a sponge? - CORRECT ANSWER-Through the
incurrent pores
What is a sponge skeleton made of? - CORRECT ANSWER-SPicules (CaCO3, SiO2)
What is the Jelly interior of a sponge? - CORRECT ANSWER-Mesoglea
-Choanocytes
-Amoebocytes
-Epidermis
-Porocytes
Choanocytes - CORRECT ANSWER-Trap food, create currents and are flagellated
(sponge)
Amoebcyte - CORRECT ANSWER-In the Mesoglea, transfer food to other cells
(sponge)
Epidermal cells - CORRECT ANSWER-Line the outside (sponge)
Porocytes - CORRECT ANSWER-form pores for water flow, not always present
(sponge)
, How do sponges feed? - CORRECT ANSWER-They are filter feeders (Straining water)
and a few are carnivorous.
Animal Characteristics - CORRECT ANSWER--Multicellular
-Heterotrophic (Energy from Carbon)
-Ingest food
-No cell walls
-Movement requiring unique tissues
-Sexual Reproduction
-Diploid cells
-Diplontic life cycles
3 Animal Development Stages - CORRECT ANSWER-1. Zygote
2. Blastula
3. Gastrula
Hydrostatic - CORRECT ANSWER-Muscles contract against cavity filled with fluid
Exoskeleton - CORRECT ANSWER-Skeleton does now grow with the animal
Endoskeleton - CORRECT ANSWER-Skeleton is internal and grows with the animal
Asexual sponge reproduction - CORRECT ANSWER-Fragmentation: A piece of sponge
breaks off and buds where the bud is a clone of the parent
Sexual sponge reproduction - CORRECT ANSWER-Sponges are hemaphrodites. They
produce sperm in the choanacyte and then it goes and finds another sponge. Releases
larva
A bilaterally symmetrical animal can be divided into mirror images by...? - CORRECT
ANSWER-Any plane through the midline of its body from its anterior to its posterior end
Do sponges have a digestive cavity? - CORRECT ANSWER-No
Cnidarians - CORRECT ANSWER--Marine organisms
-Have radial symmetry
-Have feeding tentacles
-Fertilize in open water
Diploblastic organisms - CORRECT ANSWER-Sponges, Sea anemones and jellyfish
Protostomes - CORRECT ANSWER-"Mouth First"
-All have Bilateral Symmetry
-An anterior brain that surrounds the entrance to the digestive system
-A ventral nervous system
What were animals derived from - CORRECT ANSWER-A common protist similar to
choanoflagellates
All animals have what in the extracellular matrix? - CORRECT ANSWER-Collagen and
proteoglycans
Animals likely expanded during what era? - CORRECT ANSWER-Cambrian Explosion
All animals share what type of gene? - CORRECT ANSWER-Hox genes
Sponge body shapes - CORRECT ANSWER-Highly Variable and Asymmetrical, but still
the basic shape of a pore
how does water get out of a sponge? - CORRECT ANSWER-Through the Osculum
(Oust--Osculum)
How do water and food get into a sponge? - CORRECT ANSWER-Through the
incurrent pores
What is a sponge skeleton made of? - CORRECT ANSWER-SPicules (CaCO3, SiO2)
What is the Jelly interior of a sponge? - CORRECT ANSWER-Mesoglea
-Choanocytes
-Amoebocytes
-Epidermis
-Porocytes
Choanocytes - CORRECT ANSWER-Trap food, create currents and are flagellated
(sponge)
Amoebcyte - CORRECT ANSWER-In the Mesoglea, transfer food to other cells
(sponge)
Epidermal cells - CORRECT ANSWER-Line the outside (sponge)
Porocytes - CORRECT ANSWER-form pores for water flow, not always present
(sponge)
, How do sponges feed? - CORRECT ANSWER-They are filter feeders (Straining water)
and a few are carnivorous.
Animal Characteristics - CORRECT ANSWER--Multicellular
-Heterotrophic (Energy from Carbon)
-Ingest food
-No cell walls
-Movement requiring unique tissues
-Sexual Reproduction
-Diploid cells
-Diplontic life cycles
3 Animal Development Stages - CORRECT ANSWER-1. Zygote
2. Blastula
3. Gastrula
Hydrostatic - CORRECT ANSWER-Muscles contract against cavity filled with fluid
Exoskeleton - CORRECT ANSWER-Skeleton does now grow with the animal
Endoskeleton - CORRECT ANSWER-Skeleton is internal and grows with the animal
Asexual sponge reproduction - CORRECT ANSWER-Fragmentation: A piece of sponge
breaks off and buds where the bud is a clone of the parent
Sexual sponge reproduction - CORRECT ANSWER-Sponges are hemaphrodites. They
produce sperm in the choanacyte and then it goes and finds another sponge. Releases
larva
A bilaterally symmetrical animal can be divided into mirror images by...? - CORRECT
ANSWER-Any plane through the midline of its body from its anterior to its posterior end
Do sponges have a digestive cavity? - CORRECT ANSWER-No
Cnidarians - CORRECT ANSWER--Marine organisms
-Have radial symmetry
-Have feeding tentacles
-Fertilize in open water
Diploblastic organisms - CORRECT ANSWER-Sponges, Sea anemones and jellyfish
Protostomes - CORRECT ANSWER-"Mouth First"
-All have Bilateral Symmetry
-An anterior brain that surrounds the entrance to the digestive system
-A ventral nervous system
