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WorksheetsSponge & Cnidarian
Total questions: 23
Worksheet time: 19mins
Name
Class
Date
1.
What is the translation of the Phylum Porifera?
a)
Stinging cells
b)
Filter feeders
c)
Soft bodied
d)
Pore bearing
2.
Specialized feeding cells of a sponge
a)
Gonads
b)
Nematocysts
c)
Spongin
d)
Choanocytes
3.
Specialized feeding cells of a sponge
a)
Gonads
b)
Nematocysts
c)
Spongin
d)
Choanocytes
4.
Hard fibers that provide a sponge structural support
a)
Spicules
b)
Bones
c)
Cartilage
d)
Ossicles
5.
Attached to one spot their entire adult life is referred to as
a)
Stuck
b)
Medusa
c)
Bipinnaria
d)
Sessile
6.
Sponges are:
a)
Unicellular & prokaryotic
b)
Multicellular & eukaryotic
c)
Unicellular & eukaryotic
d)
Multicellular & prokaryotic
7.
Sponges have this type of symmetry
a)
Unilateral
b)
Bilateral
c)
Radial
d)
Asymmetric
8.
The immature stage of an organism
a)
Larva
b)
Nekton
c)
Benthic
d)
Sessile
9.
Which is NOT a Cnidarian?
a)
Jellyfish
b)
Anemones
c)
Sea Urchin
d)
Corals
10.
Stinging cells of a Cnidarian are called:
a)
Collar cells
b)
Choanocytes
c)
Cnidocytes
d)
Gonads
11.
Cnidarians have which type of symmetry?
a)
Unilateral
b)
Bilateral
c)
Radial
d)
Asymmetric
12.
Anemones and Corals are in which kingdom?
a)
Protista
b)
Cubozoa
c)
Animalia
d)
Cnidaria
13.
True jellies have cells that act as eyespots which detect light called:
a)
Ocelli
b)
Statocysts
c)
Osculum
d)
Cnidocytes
14.
Corals have a mutualistic relationship with a dinoflagellate called:
a)
Ocelli
b)
Zooxanthellae
c)
Sponges
d)
Diatom
15.
What is an organism called that can produce both sperm and eggs?
a)
Gemmule
b)
Choanocyte
c)
Hermaphrodite
d)
Asexual
16.
Biological development which encompasses a larval stage that undergoes a metamorphic transition into a juvenile
a)
Indirect development
b)
Direct development
c)
Zygote
d)
Asexual reproduction
17.
Plankton that spend only part of their larval stages as plankton
a)
Partial plankton
b)
Meroplankton
c)
Holoplankton
d)
Phytoplankton
18.
When damage occurs to the reef, coral polyps die or expel their algal cells, causing the colony to take on a stark white appearance
a)
Pollution
b)
Acidification
c)
Bleaching
d)
Drying
19.
Which corals are the reef builders?
a)
Hard
b)
Soft
c)
Sponges
d)
Anemones
20.
Some Cnidarians can reproduce asexually by:
a)
Expelling gametes
b)
Internal fertilization
c)
External fertiliztion
d)
Budding
21.
This type of reef forms in shallow, warm waters along the coastline on the continental shelf:
a)
Atoll
b)
Fringing
c)
Barrier
d)
Artificial
22.
These animals that are top predators in a coral reef, are being slaughtered at an alarming rate to be used for soup
a)
Corals
b)
Jellies
c)
Sharks
d)
Dolphins
23.
The process in which the uptake of anthropogenic CO2 emissions into the ocean is compromising the integrity of coral reef limestone base structure is called:
a)
Emulsification
b)
Ocean Acidification
c)
Basic
d)
Zooxanthellae
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