BIO145 Marine Biology Lesson 5 Quiz

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