BIOL 1209 Exam 4 Testbank 2025/2026
Exam Questions and Correct Answers |
New Update
A sponge's structural materials (spicules, spongin) are manufactured by the
A) pore cells.
B) epidermal cells.
C) choanocytes.
D) amoebocytes. - 🧠 ANSWER ✔✔D) amoebocytes.
How many of the following can be observed in the mesohyl of various
undisturbed sponges at one time or another?
1. amoebocytes
,2. spicules
3. spongin
4. zygotes
5. choanocytes
A) one of these
B) two of these
C) three of these
D) four of these
E) five of these - 🧠 ANSWER ✔✔D) four of these
Which chemical is synthesized by some sponges and acts as an antibiotic?
A) streptomycin
B) spongin
C) calcium carbonate
D) silica
E) cribrostatin - 🧠 ANSWER ✔✔E) cribrostatin
,In terms of food capture, which sponge cell is most similar to the cnidocyte
of a cnidarian?
A) amoebocyte
B) choanocyte
C) epidermal cell
D) pore cell - 🧠 ANSWER ✔✔B) choanocyte
Sponges are most accurately described as
A) marine predators.
B) marine filter feeders.
C) freshwater scavengers.
D) aquatic filter feeders.
E) aquatic predators. - 🧠 ANSWER ✔✔D) aquatic filter feeders
How many of the following are characteristics of at least some members of
the phylum Cnidaria?
1. a gastrovascular cavity
2. a polyp stage
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
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, 3. a medusa stage
4. cnidocytes
5. a pseudocoelom
A) one of these
B) two of these
C) three of these
D) four of these
E) five of these - 🧠 ANSWER ✔✔D) four of these
Which of the following is true of members of the phylum Cnidaria?
A) They are not capable of locomotion because they lack true muscle
tissue.
B) They are primarily filter feeders.
C) They have either, or both, of two body forms: mobile polyps and sessile
medusae.
D) They may use a gastrovascular cavity as a hydrostatic skeleton.
Exam Questions and Correct Answers |
New Update
A sponge's structural materials (spicules, spongin) are manufactured by the
A) pore cells.
B) epidermal cells.
C) choanocytes.
D) amoebocytes. - 🧠 ANSWER ✔✔D) amoebocytes.
How many of the following can be observed in the mesohyl of various
undisturbed sponges at one time or another?
1. amoebocytes
,2. spicules
3. spongin
4. zygotes
5. choanocytes
A) one of these
B) two of these
C) three of these
D) four of these
E) five of these - 🧠 ANSWER ✔✔D) four of these
Which chemical is synthesized by some sponges and acts as an antibiotic?
A) streptomycin
B) spongin
C) calcium carbonate
D) silica
E) cribrostatin - 🧠 ANSWER ✔✔E) cribrostatin
,In terms of food capture, which sponge cell is most similar to the cnidocyte
of a cnidarian?
A) amoebocyte
B) choanocyte
C) epidermal cell
D) pore cell - 🧠 ANSWER ✔✔B) choanocyte
Sponges are most accurately described as
A) marine predators.
B) marine filter feeders.
C) freshwater scavengers.
D) aquatic filter feeders.
E) aquatic predators. - 🧠 ANSWER ✔✔D) aquatic filter feeders
How many of the following are characteristics of at least some members of
the phylum Cnidaria?
1. a gastrovascular cavity
2. a polyp stage
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
, 3. a medusa stage
4. cnidocytes
5. a pseudocoelom
A) one of these
B) two of these
C) three of these
D) four of these
E) five of these - 🧠 ANSWER ✔✔D) four of these
Which of the following is true of members of the phylum Cnidaria?
A) They are not capable of locomotion because they lack true muscle
tissue.
B) They are primarily filter feeders.
C) They have either, or both, of two body forms: mobile polyps and sessile
medusae.
D) They may use a gastrovascular cavity as a hydrostatic skeleton.
