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Porifera Test Review

Total questions: 79

Worksheet time: 49mins

Name
Class
Date
1.
Sponges are considered:
a)
Monoblastic with only one germ layer
b)
Triploblastic with three germ layers
c)
Diploblastic with two germ layers
d)
Quadroblastic with four germ layers
2.
Sponges have what type of symmetry:
a)
Bilateral symmetry
b)
Asymmetry
c)
Radial symmetry
d)
Antiparallel symmetry
3.
Archaeocytes are also known as this because they have irregular shapes:
a)
Pinacocytes
b)
Choanocytes
c)
Sclerocytes
d)
Amoebocytes
4.
In addition to gathering and breaking down food, what other process are choanocytes important for?
a)
Contraction; regulating the surface area of the sponge
b)
Respiration; gas exchange
c)
Circulation; carrying the nutrients to all parts of the sponge
d)
Digestion; breaking down food
5.
Sponges are broken down into different classes based on:
a)
Their primary method of reproduction
b)
The type of spicule composition in their skeleton
c)
What body form they exhibit
d)
Whether they live in salt water, brackish water, or freshwater
6.
When sperm are released into the water by one sponge and taken into the canal system of another to be fertilized it is called:
a)
Internal Fertilization
b)
External Fertilization
7.
Which term best describes an adult sponge?
a)
Sessile
b)
Sedentary
c)
Burrowing
d)
Free-swimming
8.
Which term best describes a sponge larva?
a)
Sessile
b)
Sedentary
c)
Burrowing
d)
Free-swimming
9.
Sponges are able to repair injuries and restore lost parts using what process?
a)
Regeneration
b)
Cell Recognition
c)
Reaggregation
d)
Somatic Embryogenesis
10.
What is unique about the newly discovered Harp sponge?
a)
It can grow to be several meters in height and diameter
b)
It was found in the deepest part of the ocean
c)
It is a carnivore and doesn't feed like other sponges
d)
Its spicules have seven rays and are different from all other sponges
11.
The process a sponge uses to eat and digest its food is called:
a)
Pinocytosis
b)
Phagocytosis
c)
Exocytosis
d)
Leukocytosis
12.

Write which class matches the statement (Calcarea Hexactinellida Demospongiae): Spicules are made of calcium carbonate

4 lines
13.

Write which class matches the statement (Calcarea Hexactinellida Demospongiae): Spicules often have six rays

4 lines
14.

Write which class matches the statement (Calcarea Hexactinellida Demospongiae): Contains mostly deep-sea forms, such as glass sponges

4 lines
15.

Write which class matches the statement (Calcarea Hexactinellida Demospongiae): Contains 95% of living sponge species, including freshwater sponges.

4 lines
16.
Sponges get their food through which process?
4 lines
17.
What is another name for collar cells?
4 lines
18.
What are the differences between asconoid, syconoid, and leuconoid body forms?
4 lines
19.
How do sponges help clean the ocean?
4 lines
20.

What is the outer most layer of Porifera?

a)

pinacoderm

b)

gastrodermis

c)

mesoglea

d)

spongin

21.

What is the innermost layer of Porifera?

a)

choanoderm

b)

pinacoderm

c)

mesohyl

d)

spongocoel

22.

The hard "skeleton" structures in a sponge are called...

a)

Spongin

b)

Amoebocytes

c)

Spicules

d)

Nematocysts

23.

Cnidarians can reproduce...

a)

sexually only

b)

asexually only

c)

both sexually and asexually

d)

neither sexually or asexually

24.

Which part of the sponge body is a large opening at the top of the central cavity through which water leaves the sponge?

a)

meenchyme

b)

Spongecoel

c)

Osculum

d)

Ostia

25.

What part of the sponge body controls the flow of water in the ostia?

a)

osculum

b)

spongecoel

c)

mesenchyme

d)

porocyte

26.

What creates the flow of water in a sponge?

a)

pores

b)

osculum

c)

collar cells

d)

amoebocytes

27.

Sponges can reproduce asexually by budding and creating...

a)

spicules

b)

larvae

c)

amoebocytes

d)

gemmules

28.

Pick the description of sponge that is correct.

a)

Unicellular, has tissues, reproduces asexually

b)

Multicellular,

no tissues or organ systems,

reproduces asexually or sexually

c)

Unicellular,

marine,

filter feeder

d)

Multicellular, tissues regulate filter feeding

29.

Are organisms in the phylum Porifera Vertebrates or Invertebrates? Why?

a)

Vertebrates because they have a true back bone.

b)

Invertebrates because they have a true back bone.

c)

Vertebrates because they lack a true back bone.

d)

Invertebrates because they lack a true back bone

30.

Select the correct description of a Sponges body plan.

a)

Sponges are asymmetrical because one side is different than the other.

b)

Sponges are symmetrical because one side is the same as the other.

c)

Sponges are asymmetrical because one side is the same as the other.

d)

Sponges are symmetrical because one side is different than the other.

31.

Organisms in the Phylum Porifera reproduce:

a)

neither sexually or asexually, only by cloning.

b)

only asexually.

c)

Asexually by budding and sexually by gametic cells.

d)

only sexually.

32.

Species in the Phylum Porifera are:

a)

Multicellular and lack tissues and organs.

b)

Unicellular with organs and tissues.

c)

Multicellular with organs and tissues.

d)

Unicellular without organs and tissues or specialized cells.

33.

Which of the following would be an adaptation for an organism in the Phylum Porifera?

a)

The ability to generate light so they attract prey in the depths of the ocean.

b)

extreme amounts of muscle in the tail region to help them swim faster.

c)

extra sensitive eye sight to avoid predators.

d)

Specialized cells attaching them to structures and toxins to protect them.

34.

How do Sponges interact with organisms around them?

a)

Sponges provide shelter for algae, shrimp, and crabs.

b)

sponges are heterotrophic and hunt fish around them.

c)

Sponges decompose organic materials in the coral.

d)

Sponges are sessile and do not interact with organisms in the environment.

35.
The spongin and spicules make up what in sponges?
a)
digestive tract
b)
skin
c)
stomach
d)
skeleton
36.
Water enters sponges through the ______.
a)
ostia/ostium
b)
oscula/osculum
37.
What skeleton type?
a)
Asconoid
b)
Leuconoid
c)
Syconoid
38.
Describes an animal that does not move as an adult
a)
hermaphrodite
b)
sessile
c)
filter feeder
d)
spongin
39.
Animals bring in or attract food from the surrounding environment are ________
a)
sessile
b)
medusas
c)
filter feeders
d)
choanocytes
40.
Sponges can reproduce both sexually and asexually
a)
true
b)
false
41.
The hard "skeleton" structures in a sponge are called...
a)
Spongin
b)
Spicules
c)
Amebocytes
d)
Pinococytes
42.
What habitat can sponges be found or inhabit?
a)
Saltwater and Freshwater
b)
Saltwater only
c)
Rainforest
d)
Freshwater only
43.
Which of the following structures is not found in sponges?
a)
Choanocytes
b)
Tissues
c)
Pinacocytes
d)
Mesohyl
44.

The flagella of a choanocyte    

a)
regulates the diameter of the osculum
b)
filters food from the water
c)
creates currents in the water 
d)
secretes digestive enzymes
45.
What are the three body types for Porifera?
a)

Asconoid, Syconoid, Leuconoid

b)
Coelomate, Acoelomate, Pseudocoelomate
c)
Polyp, Medusa, Cube
d)
Pseudopodia, Cilliated, Flagellated
46.
The most complex sponge body form, the __________, is characterized by multiple oscula and a complex canal system where choanocytes reside in small chambers.    
a)

Leuconoid

b)

Asconoid

c)

Syconoid

d)
Polyp
47.
The __________ is the simplest, but least common body form of sponge 
a)

Asconoid

b)
Demospongiae
c)

Syconoid 

d)

Leuconoid

48.
Sponges belong in which phylum?
a)
Cnidaria
b)
Porifera
c)
Chordata
d)
Arthropoda
49.

Which of the following is NOT a characteristic of Porifera?

a)

aquatic

b)

triploblastic

c)

non-eumatazoan

d)

pore bearing

50.

What is the feeding cell of a Porifera called?

a)

choanocyte

b)

ostia

c)

osculum

d)

pinnacoderm

51.

Which class of Porifera do glass sponges belong to?

a)

Calcera

b)

Demospongiae

c)

Hexactinellida

52.

What nonliving part of the Porifera provides structure and protection?

a)

spicule

b)

mesohyl

c)

pinnacoderm

d)

spongocoel

53.

Which of the following BEST describes a Porifera's role in the ocean?

a)

filter feeder

b)

suspension feeder

c)

predator

d)

herbivore

54.

What facilitates the water flow in a Porifera?

a)

flagella

b)

mesohyl

c)

ostia

d)

osculum

55.

Name of D (opening at top)

a)

Osculum

b)

Ostia

c)

Choanocytes

d)

Incurrent Pore

56.

Flagella inside a sponge keep water moving through its body. Why is this necessary?

a)

It prevents the sponge from floating away

b)

It allows the sponge to feed

c)

It allows the sponge to absorb carbon dioxide

d)

It maintains the water pressure inside the sponge

57.
Sponges get their food by 
a)
going through photosynthesis
b)
decomposing it
c)
sponges do not eat
d)
filter feeding
58.
What is true about sponges?
a)
They have organs
b)
They have bilateral symmetry
c)
They have a true coelom
d)
They are animals
59.

Sponges are primarily sessile organisms. What does this mean?

a)

They live permanently in one palce

b)

They move around their whole life

60.

The cells inside the sponge that have flagella (and absorb food) are called...

a)

Collar cells

b)

Flagella

c)

Osculum

d)

Pores

61.
Which part of the sponge body is the central cavity that leads to the osculum?
a)
Ostia
b)
Mesenchyme
c)
Spongocoel
d)
Osculum
62.

Sponges get their nutrients through

(a)  

63.

Sponges are part of Domain...

a)

Eukarya

b)

Animalia

c)

Cnidaria

d)

Scyphozoa

64.

The calcium carbonate structures that provide support to the sponge are called

a)

Bones

b)

Spines

c)

Spicules

d)

Coral

65.

Porifera means...

a)

Sponge

b)

Spicules

c)

Pore Bearers

d)

Hole filled

66.

All organisms in this class that we'll dissect are in KINGDOM...

a)

Plantae

b)

Bacteria

c)

Animalia

d)

Eukarya

67.

This animal is thought to be the first on Earth.

a)

Sea anemone

b)

jelly

c)

sponge

d)

clam

68.

How does climate change affect poriferans?

a)

They expel their zooxanthellae and bleach.

b)

Ocean acidification affects the spicules of calcarea just like sea shells.

c)

Encrusting sponges do better because shells are weakened by ocean acidification.

d)

All of these

69.

Label the Sponge with the following parts:

osculum, ostium, choanocyte, pinacocyte, amoebocyte, spicule, mesohyl, water current, holdfast

a)choanocytes
b)pinacocyte
c)Ostium
d)Spicule
e)amoebocyte
f)holdfast
g)water current
h)mesohyl
i)osculum
1
2
3
4
5
6
7
8
9
1)
2)
3)
4)
5)
6)
7)
8)
9)
70.

Match the following

a)
1.

Asconoid

b)
2.

Syconoid

c)
3.

Leuconoid

71.

How does water leave the sponge?

a)

laterally

b)

through the pore cells

c)

through the osculum

d)

through the substrate

72.

Sponges skeletal systems are made up of ​ (a)   .

Choose from the below words
spicules and spongin
spongin and amoebocytes
spicules and amoebocytes
73.
Question Image

Match the following

a)

sponges that need little support

1.

skeletal system made of spongin

b)

sponges that need more support

2.

skeletal system made of spicules

c)

sponges that need a lot of support

3.

skeletal system of spongin and spicules

74.

Which is the correct order of the taxonomy levels (from most broad to most specific)?

a)

species, genus, family, order, class, phylum, kingdom, domain

b)

domain, kingdom, phylum, class, order, family, genus, species

c)

kingdom, domain, class, phylum, family, order, species, genus

d)

species, phylum, kingdom, domain, order, class, family, genus

75.

Sponges have true tissue differentiation (muscle tissue, stomach tissue, etc).

a)

True

b)

False

76.

Sponges generate a current through their bodies using

a)

Flagella on their choanocytes

b)

Flagella on their amebocytes

c)

Flagella on their ostia

d)

Flagella on their osculum

77.

3. Which of the following is NOT what a sponge skeleton can be made of?

a)

Spongin

b)

Cnidocyst

c)

Silica

d)

Spicule

78.

Label the parts of the sponge

a)osculum
b)spicule
c)ostium
d)spongocoel
e)bud
f)holdfast/base
1
2
3
4
5
6
1)
2)
3)
4)
5)
6)
79.

Label the inner parts of the sponge

a)spongocoel
b)spicule
c)mesohyl
d)amoebocyte
e)pinacocyte
f)ostium
g)pore cell
h)flagella
i)choanocyte
1
2
3
4
5
6
7
8
9
1)
2)
3)
4)
5)
6)
7)
8)
9)

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