ESTUDY
TEST BANK FOR CAMPBELL BIOLOGY 12TH EDITION
|| CHAPTERS 33||FULL COMPLETE||LATEST
### 1) A sponge's structural materials (like spicules and spongin) are produced by which cells?
A) Pore cells
B) Outer skin cells (epidermal cells)
C) Collar cells (choanocytes)
D) Amoebocytes
**✔ Answer: D**
---
### 2) How many of the following can be found in the mesohyl (gelatinous layer) of a sponge at one
time or another?
1. Amoebocytes
2. Spicules
3. Spongin
4. Zygotes
5. Collar cells (choanocytes)
A) One of these
B) Two of these
C) Three of these
D) Four of these
,ESTUDY
E) All five
**✔ Answer: D**
---
### 3) Which chemical is produced by some sponges and works as an antibiotic?
A) Streptomycin
B) Spongin
C) Calcium carbonate
D) Silica
E) Cribrostatin
**✔ Answer: E**
---
### 4) In terms of capturing food, which sponge cell is most like the stinging cells (cnidocytes) of a
cnidarian?
A) Amoebocyte
B) Collar cell (choanocyte)
C) Outer skin cell (epidermal cell)
D) Pore cell
**✔ Answer: B**
,ESTUDY
---
### 5) How are sponges best described?
A) Marine predators
B) Marine filter feeders
C) Freshwater scavengers
D) Aquatic filter feeders
E) Aquatic predators
**✔ Answer: D**
---
### 6) How many of the following are features of at least some members of the phylum Cnidaria?
1. Gastrovascular cavity (digestive chamber)
2. Polyp stage
3. Medusa stage
4. Stinging cells (cnidocytes)
5. A body cavity (pseudocoelom)
A) One of these
B) Two of these
C) Three of these
D) Four of these
, ESTUDY
E) All five
**✔ Answer: D**
---
### 7) Which statement is true for members of the phylum Cnidaria?
A) They cannot move because they don’t have true muscle tissue.
B) They are primarily filter feeders.
C) They have two possible body forms: mobile polyps and stationary medusae.
D) They can use their gastrovascular cavity as a hydrostatic skeleton.
E) They are the simplest organisms with a full digestive tract (two openings).
**✔ Answer: D**
8) The members of which clade in the phylum Cnidaria occur only as polyps?
A) Hydrozoa
B) Scyphozoa
C) Anthozoa
D) Cubozoa
✔✔ - ANSWER - C
9) Which clade in the phylum Cnidaria includes "jellies" with rounded (as opposed to boxlike) medusae?
TEST BANK FOR CAMPBELL BIOLOGY 12TH EDITION
|| CHAPTERS 33||FULL COMPLETE||LATEST
### 1) A sponge's structural materials (like spicules and spongin) are produced by which cells?
A) Pore cells
B) Outer skin cells (epidermal cells)
C) Collar cells (choanocytes)
D) Amoebocytes
**✔ Answer: D**
---
### 2) How many of the following can be found in the mesohyl (gelatinous layer) of a sponge at one
time or another?
1. Amoebocytes
2. Spicules
3. Spongin
4. Zygotes
5. Collar cells (choanocytes)
A) One of these
B) Two of these
C) Three of these
D) Four of these
,ESTUDY
E) All five
**✔ Answer: D**
---
### 3) Which chemical is produced by some sponges and works as an antibiotic?
A) Streptomycin
B) Spongin
C) Calcium carbonate
D) Silica
E) Cribrostatin
**✔ Answer: E**
---
### 4) In terms of capturing food, which sponge cell is most like the stinging cells (cnidocytes) of a
cnidarian?
A) Amoebocyte
B) Collar cell (choanocyte)
C) Outer skin cell (epidermal cell)
D) Pore cell
**✔ Answer: B**
,ESTUDY
---
### 5) How are sponges best described?
A) Marine predators
B) Marine filter feeders
C) Freshwater scavengers
D) Aquatic filter feeders
E) Aquatic predators
**✔ Answer: D**
---
### 6) How many of the following are features of at least some members of the phylum Cnidaria?
1. Gastrovascular cavity (digestive chamber)
2. Polyp stage
3. Medusa stage
4. Stinging cells (cnidocytes)
5. A body cavity (pseudocoelom)
A) One of these
B) Two of these
C) Three of these
D) Four of these
, ESTUDY
E) All five
**✔ Answer: D**
---
### 7) Which statement is true for members of the phylum Cnidaria?
A) They cannot move because they don’t have true muscle tissue.
B) They are primarily filter feeders.
C) They have two possible body forms: mobile polyps and stationary medusae.
D) They can use their gastrovascular cavity as a hydrostatic skeleton.
E) They are the simplest organisms with a full digestive tract (two openings).
**✔ Answer: D**
8) The members of which clade in the phylum Cnidaria occur only as polyps?
A) Hydrozoa
B) Scyphozoa
C) Anthozoa
D) Cubozoa
✔✔ - ANSWER - C
9) Which clade in the phylum Cnidaria includes "jellies" with rounded (as opposed to boxlike) medusae?
