Mollusks, Arthropods And Echinoderms

Question 1

Which two are characteristics of a mollusk?
A)vertebrate,
B) invertebrate
C) segmented body
D) unsegmented body

Answer 1

Invertebrate
Unsegmented body

Question 2

What is the function of the hard outer shell of a mollusk?

Answer 2

Protects the mollusk’s soft body

Question 3

What is the function on the mantle ?

Answer 3

Covers internal organs

Question 4

What is the function of a mollusk’s foot?

Answer 4

Crawling, digging or catching prey

Question 5

True or false? Mollusks are found only in dry places on land?

Answer 5

False

Question 6

What type of symmetry do mollusks have?

Answer 6

Bilateral

Question 7

What is the function of a gill

Answer 7

The remove oxygen from the water

Question 8

What are cilia and what is the function of them?

Answer 8

They are tiny hairlike structures that move water over the gills

Question 9

What are radula?

Answer 9

A flexible ribbon of tiny teeth that scrape food from a surface

Question 10

What are four characteristics that biologist use to classify mollusks?

Answer 10

1- presence of a shell
2 type of shell
3 type of foot
4 complexity of the nervous system

Question 11

What are the three major types of mollusks?

Answer 11

1- gastropods
2- bivalves
3- cephlapods

Question 12

Mollusks that have a single shell are called?

Answer 12

Gastropods

Question 13

What are bivalves?

Answer 13

Mollusks that have two shells held together by hinges and strong muscles

Question 14

How are bivalves different from other mollusks?

Answer 14

Bivalves don’t have radulas . Instead most are filter feeders that strain tiny organisms from the water.

Question 15

Which two are true about bivalves?
A) bivalves use gills to capture food
B) bivalves live on land
C) clams burrow in mud
D) a pearl forms in an oyster to protect the oyster from predators

Answer 15

They use their gills to capture food, clams burrow in mud

Question 16

Mollusks whose feet are adapted to form tentacles around their mouths are ?

Answer 16

Cephalopods

Question 17

What type cephalopod has a shell outside the body?
Nautilus, squid or octopus?

Answer 17

Nautilus

Question 18

What type of cephalopod has no shell?

Answer 18

Octopus

Question 19

What type of cephalopod has has a small shell inside their body?

Answer 19

Squid

Question 20

How do cephalopods catch their food?

Answer 20

The capture prey by using muscular tentacles. The find this food they use their suckers.

Question 21

Which 2 are true about cephalopods?
A) they have large eyes and a complex nervous system
B) they cannot remember things
C ) all live in the ocean
D) they swim by waving tentacles

Answer 21

They have large eyes, a complex nervous system and they all live in the ocean

Question 22

Give a common example of each type of mollusk.

Answer 22

1) gastropod- slug
2) bivalve- clam
3) cephalopod- octopus

Question 23

A row of teeth found in gastropods and cephalopods are called

Answer 23

Radula

Question 24

The group of mollusks with the most complex nervous system of any invertebrate is the

Answer 24

Cephalopod group

Question 25

What eats both plants and animals?

Answer 25

Omnivore

Question 26

What is a two shelled mollusk?

Answer 26

Bivalve

Question 27

A snail is an example of a

Answer 27

Gastropod

Question 28

Most water dwelling mollusks have what part that removes oxygen from the water?

Answer 28

Gills

Question 29

What are the major groups of arthropods ?

Answer 29

Crustaceans, arachnids, centipedes and millipedes and insects

Question 30

Are arthropods invertebrates?

Answer 30

Yes

Question 31

What are the characteristics of arthropods?

Answer 31

1- invertebrates 2- external skeletons 3) segmented bodies 4) jointed attachments ( appendages)

Question 32

What are some examples of appendages?

Answer 32

Wings, legs

Question 33

How does an exoskeleton help arthropods live on land?

Answer 33

It prevents the arthropod from drying out on land

Question 34

When an arthropod grows what happens to the exoskeleton?

Answer 34

Molting : sheds and grows a new one

Question 35

How many pairs of antennae do crustaceans have?

Answer 35

2

Question 36

How many body sections do arachnids have?

Answer 36

2

Question 37

How many pairs of legs do insects have?

Answer 37

3

Question 38

True or false? Joints in their appendages give arthropods flexibility and the ability to move

Answer 38

True

Question 39

What is the function of the antennae?

Answer 39

They have sense organs for smelling, tasting and touching

Question 40

What is the function of legs

Answer 40

Walking, catching prey, defending against predators

Question 41

What is a crustacean?

Answer 41

An arthropod that has two or three body sections, five or more pairs of legs and two pairs of antennae

Question 42

What is true about crustaceans? A) get oxygen through gills B) live only in dry areas C) pistol shrimp eat dead plants and animals D) krill are herbivores

Answer 42

They get oxygen through gills and krill are herbivores

Question 43

Crustacean larvae develop into adults by?

Answer 43

Metamorphosis

Question 44

An arthropod with only 2 body section and four pairs of legs are

Answer 44

Arachnids

Question 45

What are characteristics of arachnids? A) abdomen has reproductive organs B) four pairs of legs C ) four antennae D) parasitic

Answer 45

Abdomen contains reproductive organs and four pairs of legs

Question 46

Are all spiders herbivores?

Answer 46

NO

Question 47

Do all spiders build webs to catch their prey?

Answer 47

NO

Question 48

Do spiders have hollow fangs that inject venom into prey?

Answer 48

YES

Question 49

Do spiders rarely bite people?

Answer 49

Yes

Question 50

Which one is a mite? Black widow, chigger, brown recluse or a tarantula?

Answer 50

Chigger

Question 51

When are scorpions most active?

Answer 51

At night

Question 52

What does a scorpion have at the end of its abdomen to inject venom into prey?

Answer 52

Stinger

Question 53

What are ticks?

Answer 53

Parasites that live on the outside of a host animals body

Question 54

Which has two pairs of legs on each segment? A centipede or a millipede ?

Answer 54

Millipede

Question 55

What has one pair of legs on each segment? Centipede or millipede!?

Answer 55

Centipede

Question 56

Which is a predator that injects venom? Centipede or millipede

Answer 56

Centipede

Question 57

Which is a scavenger? Centipede or millipede?

Answer 57

Millipede

Question 58

An arthropods what protects it and keeps it from drying out?

Answer 58

Exoskeleton

Question 59

The heads of some arthropods have what which contain sense organs?

Answer 59

Antennae

Question 60

Some animals go through this process during their life cycle in which their bodies undergo dramatic changes in form as they develop . This is called

Answer 60

Metamorphosis

Question 61

The hind body section of an arachnid is called its

Answer 61

Abdomen

Question 62

The process of shedding the outgrown exoskeleton is called

Answer 62

Molting

Question 63

What are the steps of metamorphosis in an insect?

Answer 63

Egg- larvae- pupa- adult insect

Question 64

What is an insect?

Answer 64

Arthropods, three body sections, six legs, one pair on antennae, and usually one or two pair of wings

Question 65

What body section are the wings and legs attached?

Answer 65

Thorax

Question 66

What do insects have two of that contain many lenses?

Answer 66

Compound eyes

Question 67

How do insects get oxygen in their bodies ?

Answer 67

Through a system of tubes

Question 68

Do some insects feed on the blood of living animals ?

Answer 68

Yes, true

Question 69

How do insects get food? What do they use ?

Answer 69

By using mouthparts that are highly specialized

Question 70

In gradual metamorphosis the egg hatches into a (——-) which looks like a small adult

Answer 70

Nymph

Question 71

What is a food chain?

Answer 71

A series of events in which organisms eat each other and get energy

Question 72

What is the study of food chains and other ways organisms interact with their environments?

Answer 72

Ecology

Question 73

What does a food chain start with?

Answer 73

A producer

Question 74

What is a producer?

Answer 74

An organism that makes their own food ( plant)

Question 75

What are consumers?

Answer 75

Organisms that obtain energy by eating other organisms ( some eat producers( plants) others eat other consumers)

Question 76

What is a decomposer?

Answer 76

Breaks down wares and dead bodies of other organisms

Question 77

Is the following true or false? About 50 % of crops grown for human consumption are eaten by insects

Answer 77

False

Question 78

True or false: insects play key roles in food chains

Answer 78

True

Question 79

An organism that eats wastes and dead organisms is called a

Answer 79

Decomposer

Question 80

What does a pollinator do?

Answer 80

A pollinator carries pollen from one plant to another of the same species so that they can reproduce

Question 81

What are two types of insects that can spread disease?

Answer 81

Mosquitoes and fleas

Question 82

True or false? Pesticides used to kill harmful insects can also kill pollinators and can harm other animals

Answer 82

TRUE

Question 83

A method of Introducing natural insect predators or natural insect diseases to get rid of harmful insects is called

Answer 83

Biological control

Question 84

Insects play a key role in?

Answer 84

Food chains

Question 85

All insects are:

Answer 85

Consumers

Question 86

Insects used for biological control include

Answer 86

Ladybugs

Question 87

People sometimes use chemical called what to try to kill harmful insects

Answer 87

Pesticides

Question 88

What is animal called that carries pollen from one plant to another

Answer 88

Pollinator

Question 89

What is an echinoderm?

Answer 89

Invertebrate, internal skeleton, system of fluid filled tubes called a water vascular system

Question 90

What are tube feet?

Answer 90

They are potions of the tubes that squeeze together forcing water into the structure

Question 91

What is a water vascular system?

Answer 91

The internal system of fluid filled tubes in echinoderms

Question 92

Can you label the main parts of a sea stars vascular system in a diagram?

Answer 92

Know tube feet, where the opening for water is and where the water vascular system is

Question 93

Is the following true or false? A sea star forces its stomach into the opening of a clams shell to digest the clams body

Answer 93

True

Question 94

How do brittle stars get food?

Answer 94

Tube feet

Question 95

How do brittle stars move?

Answer 95

Slither in a snakelike motion

Question 96

How do sea urchins get food?

Answer 96

Scrape food with with five teeth like structures they project from their mouth

Question 97

How do sea urchins move?

Answer 97

Bands of tube feet that extent out between their spines

Question 98

How do sea cucumbers get their food?

Answer 98

Lengthen their tentacles to sweet food toward its mouth

Question 99

How do sea cucumbers move?

Answer 99

Rows of tube feet on their underside

Question 100

Which of the following is NOT an echinoderm? Fiddler crab, brittle star, sea urchin or sea cucumber

Answer 100

Fiddler crab

Question 101

Do tube feet digest food?

Answer 101

NO the help echinoderms move along the ocean floor, catch food and grip surfaces

Question 102

How does a sea star captures its food?

Answer 102

Uses five arms to grasp a clam, then it pulls on the tightly closed shell with its tube feet, when the shell opens, the sea star forces its stomach out of its mouth and into the opening between the clams shell . Digestive chemicals then break down the clams tissues and the sea star sucks in

Question 103

What consists of fluid filled tubes within the echinoderms body?

Answer 103

The water vascular system

Question 104

What does an echinoderms have that supports its body?

Answer 104

Endoskeleton

Question 105

Animals that live in what phylum are radially symmetrical invertebrates that live on the ocean floor?

Answer 105

Echinoderm