Bio 111 Mcgill Final Exam Questions and
Answers with Verified Solutions | Latest
Updated 2026
Animal Characteristics -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 1. Zygote
2. Blastula
3. Gastrula
Hydrostatic Muscles contract against cavity filled with
fluid
Exoskeleton Skeleton does now grow with the animal
Endoskeleton Skeleton is internal and grows with the
animal
What were animals derived from A common protist similar to
choanoflagellates
, All animals have what in the Collagen and proteoglycans
extracellular matrix?
Animals likely expanded during Cambrian Explosion
what
era?
All animals share what type of Hox genes
gene?
Sponge body shapes Highly Variable and Asymmetrical, but still
the
basic shape of a pore
how does water get out of a Through the Osculum (Oust--Osculum)
sponge?
How do water and food get into a Through the incurrent pores
sponge?
What is a sponge skeleton made SPicules (CaCO3, SiO2)
of?
What is the Jelly interior of a Mesoglea
sponge? -Choanocytes
-Amoebocytes
-Epidermis
-Porocytes
Answers with Verified Solutions | Latest
Updated 2026
Animal Characteristics -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 1. Zygote
2. Blastula
3. Gastrula
Hydrostatic Muscles contract against cavity filled with
fluid
Exoskeleton Skeleton does now grow with the animal
Endoskeleton Skeleton is internal and grows with the
animal
What were animals derived from A common protist similar to
choanoflagellates
, All animals have what in the Collagen and proteoglycans
extracellular matrix?
Animals likely expanded during Cambrian Explosion
what
era?
All animals share what type of Hox genes
gene?
Sponge body shapes Highly Variable and Asymmetrical, but still
the
basic shape of a pore
how does water get out of a Through the Osculum (Oust--Osculum)
sponge?
How do water and food get into a Through the incurrent pores
sponge?
What is a sponge skeleton made SPicules (CaCO3, SiO2)
of?
What is the Jelly interior of a Mesoglea
sponge? -Choanocytes
-Amoebocytes
-Epidermis
-Porocytes
