Bio 104 -Exam 3 study Questions With
Solutions 100% Correct
The common ancestor of all animals is/are the: sponges
Determinate cleavage takes place in ____ and is characterized by a pattern of development where
the ultimate fate of each cell is ____. Deuterostomes; not fixed until late in the
developmental process
animal phylum that has an asymmetrical body plan. Porifera
If adult sponges are sessile, why can they still be classified as animals? Sponges are
similar to other animals in that they are multicellular, heterotrophic, lack cell walls and produce
sperm cell
primary challenge animals faced in adapting to life on land. desiccation
The epidermis of a nematode is derived from the: ectoderm
, Bio 104 -Exam 3 study Questions With
Solutions 100% Correct
Which group of organisms display radial cleavage during development? deuterostomes
Sponges are believed to have arisen from the ______________because they possess
characteristics of animals. choanoflagellates
A grasshopper belongs in the Ecdysozoa clade because of its ability to: molt
Because it is an enclosed compartment of fluid under pressure, the coelom can serve as a _____,
which shapes the body of soft animals. skeleton
In most protostomes, the blastopore develops into the: mouth
Within the phylum Cnidaria, corals are most closely related to which organism? sea
anemones
Sponges have specialized cells, but those cells are not organized into: organs or tissue
Solutions 100% Correct
The common ancestor of all animals is/are the: sponges
Determinate cleavage takes place in ____ and is characterized by a pattern of development where
the ultimate fate of each cell is ____. Deuterostomes; not fixed until late in the
developmental process
animal phylum that has an asymmetrical body plan. Porifera
If adult sponges are sessile, why can they still be classified as animals? Sponges are
similar to other animals in that they are multicellular, heterotrophic, lack cell walls and produce
sperm cell
primary challenge animals faced in adapting to life on land. desiccation
The epidermis of a nematode is derived from the: ectoderm
, Bio 104 -Exam 3 study Questions With
Solutions 100% Correct
Which group of organisms display radial cleavage during development? deuterostomes
Sponges are believed to have arisen from the ______________because they possess
characteristics of animals. choanoflagellates
A grasshopper belongs in the Ecdysozoa clade because of its ability to: molt
Because it is an enclosed compartment of fluid under pressure, the coelom can serve as a _____,
which shapes the body of soft animals. skeleton
In most protostomes, the blastopore develops into the: mouth
Within the phylum Cnidaria, corals are most closely related to which organism? sea
anemones
Sponges have specialized cells, but those cells are not organized into: organs or tissue
