27 Jun BIO145 Marine Biology Lesson 5 Quiz
Question
1 of 25 Which of the following cell structures of a sponge do not match its function?
Collar cells — calcareous structures for support
Osculum — opening through which water leaves
Pore cells — opening through which water enters
Spongin — fibers for support
Gametes — reproduction
QUESTION
2 of 25 Sponges and all filter feeders use which of the following as a food source?
Plankton only
All particulate matter suspended in water
Particulate matter that deposits on the bottom
Dead plankton only
Plant matter in the water
QUESTION
3 of 25 A larva is best defined as which of the following?
Immature stage that is able to reproduce
Early colony of cells of fresh-water sponges
Early stage of development of an organism, typically part of the plankton
Sperm cell that lives free in the water
Egg that has been fertilized by more than one sperm
QUESTION
4 of 25 Cnidarians share all of these features except which of the following?:
Nematocysts
Multicellular
Radial symmetry
Complete digestive tract with mouth and anus
Marine and fresh-water
QUESTION
5 of 25 Most cnidarians are specialized as
filter feeders.
parasites.
carnivores.
herbivores.
feeders of organic matter on the bottom.
QUESTION
6 of 25 Statocysts are structures used in
sensing balance.
capturing prey.
reproduction.
swimming movements.
digesting food.
QUESTION
7 of 25 Which of the following surfaces is not found in bilaterally symmetrical animals?
Dorsal
Anterior
Posterior
Ventral
Aboral
QUESTION
8 of 25 The development of bilateral symmetry in invertebrates has particularly influenced the evolution of a more complex
digestive system.
reproductive system.
skeleton.
mouth.
nervous system.
QUESTION
9 of 25 Deposit-feeding animals feed on
blood and living tissues.
particulate matter in the water.
plankton from the water that passively enters the digestive system.
live prey.
organic matter that settles on the bottom.
QUESTION
10 of 25 All molluscs
have a soft body often covered by a shell made of silica.
have a soft body covered by a mantle.
have an externally segmented body.
lack a larval stage.
lack a circulatory system.
QUESTION
11 of 25 The radula and crystalline style of molluscs are part of the
reproductive system.
defensive mechanisms.
excretory system.
nervous system.
digestive system.
QUESTION
12 of 25 Which of the following is a distinctive feature of arthropods?
Lack of a digestive system
Jointed legs
Gills in a mantle cavity
Proboscis used to capture prey
Lack of a brain
QUESTION
13 of 25 Nematocysts are _______________ found in_______________.
feeding structures; sponges
reproductive structures; all invertebrates
gametes; echinoderms
stinging cells; cnidarians
cells for sight; mollusks
QUESTION
14 of 25 Bivalves, such as oysters, often secrete smooth material over rough impurities inside of the shell. The structure that results is a _____________.
grain of sand
piece of coral
shell
larva
pearl
QUESTION
15 of 25 The vestigial internal shell of a squid is called the _______________.
style
mantle
ink gland
pen
gonad
QUESTION
16 of 25 Which of the following animals has a beak?
Squid
Jellyfish
Lobster
Sea cucumber
Sponge
QUESTION
17 of 25 The compound eye of a lobster sees_______________.
colors but not shapes of objects
a complete image with each section of the eye
in black and white
one image for the entire eye
close up – but not at a distance
QUESTION
18 of 25 Which of the following is not an echinoderm?
Sea cucumber
Sand dollar
Sea Anemone
Sea star
Sea urchin
QUESTION
19 of 25 An adult sea star is said to be secondarily radially symmetrical because ________________.
every other animal has bilateral symmetry
the larva is bilaterally symmetrical
as a larva the animal is also radially symmetrical
as arms grow the animal changes symmetry
if an arm is lost a new arm can grow in its place
QUESTION
20 of 25 If a fisherman wishing to get rid of sea stars chops arms off each that he finds, eventually
all sea stars in the area will have no arms.
no sea stars will be found in the area.
sea stars will eat all of the fish that the fisherman doesn’t catch.
there will be more sea stars in the area.
the bottom of the ocean will be littered with sea star arms.
QUESTION
21 of 25 Copepods occupy what niche in a marine ecosystem?
Are low on the food chain and are planktonic
Are predators that feed on small fish
Roam the bottom of the ocean searching for detritus
Latch onto the bodies of whales and sea turtles
Make up most of periodic red tides
QUESTION
22 of 25 Which of the following lifestyle patterns would most benefit from organisms being hermaphroditic? Animals that _________________.
never learned how to reproduce
change their sex at different stages in their life cycle
are social and live in large groups
can only feed at night
don’t come in contact with others of the same species very often
QUESTION
23 of 25 The tube feet of a sea star operate as part of the ___________________.
digestive system
water vascular system
reproductive system
nervous system
molting process from larva to adult
QUESTION
24 of 25 A sea cucumber confuses predators by ________________________.
moving one way and then quickly changing directions
jumping above the level the predator can reach
leaving its intestines behind
squirting out ink from an internal ink sac
making itself look much larger than it really is
QUESTION
25 of 25 Which of the following animals is the closest evolutionarily to land animals?
Sea star
Clam
Sea cucumber
Cnidarian
Lancelet
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