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1. ZOOLOGY > Invertebrates (2) > Flashcards

Invertebrates (2) Flashcards

1
Q

Can be found in all sorts of habitats, from the deepest ocean trenches to the tops of the mountain

A

Mollusks

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2
Q

Important part of the marine ecosystem and play a role in everything from cleaning up the ocean floor to providing food for other animal

A

Mollusks

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3
Q

Which mollusks is extinct

A

Hyolitha

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4
Q

How many classes does mollusks have

A

8

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5
Q

Worm-like, shell-less mollusks with a radula (a rasping tongue like organ for feeding ) but no tentacles.

A

Aplacophora

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6
Q

They live in deep ocean sediments and feed on microscopic organisms

A

Aplacophora

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7
Q

These mollusks have a single, cap-like shell and are thought to be related to an ancient group that gave rise to other mollusks.

A

Monoplacophora

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8
Q

They live in deep ocean hydrothermal vents and cold seeps

A

Monoplacophora

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9
Q

Also known as chitons, these mollusks have a series of eight overlapping shell plates on their dorsal (back) side.

A

Polyplacophora

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10
Q

They live in shallow marine waters and graze on algae

A

Polyplacophora

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11
Q

The clams, oysters, mussels, scallops, and other shellfish with two hinged shells.

A

Bivalvia

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12
Q

They live in marine, freshwater, and terrestrial habitats and feed on plankton or by filtering detritus (organic particles) from the water

A

Bivalvia

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13
Q

The largest and most diverse class of mollusks, including snails, slugs, limpets, sea slugs and sea butterflies.

A

Gastropoda

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14
Q

have two pairs of legs per body segment. They are detritivores that feed on decaying organic matter.

A

Diplopoda (Millipedes)

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15
Q

have one pair of legs per body segment. They are predatory arthropods that feed on other invertebrates.

A

Chilopoda (centipedes)

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16
Q

____ are an important part of the marine food chain.

A

Crustaceans

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17
Q

They include crabs, lobsters, shrimp, and barnacles.

A

Crustacea (crustacean)

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18
Q

have ten legs and live in water.

A

Crustacea (crustacean)

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19
Q

include spiders, scorpions, mites, and
ticks.

A

Arachnida (arachnid)

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20
Q

They do not have antennae.

A

Arachnida (arachnid)

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21
Q

have eight legs and chelicerae, which are fangs used
for feeding.

A

Arachnida (arachnids)

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22
Q

This is the largest and most diverse class of arthropods, with over a
million described species.

A

Insects

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23
Q

Ihave three body parts (head, thorax, and abdomen), sixlegs, and one pair of antennae.

A

Insects

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24
Q

They are found in nearly every habitat on Earth, and they
play important roles in pollination, decomposition, and the food chain.

A

Insects

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25
Q

Arthropods have several key characteristics that set them apart from other animals. First,
they have a hard exoskeleton made of ___ Second, arthropods have ___ bodies. This means that their bodies are divided into a series of rings, each of which can move independently.

Third, arthropods have ____. These appendages can be used for walking, swimming, flying, eating, sensing their environment, and reproducing.

A

Chitin
Segmented
jointed appendages.

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26
Q

largest phylum in the animal kingdom, with over ___million described species. They are found in nearly every habitat on Earth, from the deepest oceans to the highest
mountains.

A

Arthropoda
10

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27
Q

Some examples of ____ include:
 Roundworm (Ascaris lumbricoides)
 Hookworm (Necator americanus)
 Pinworm (Enterobius vermicularis)

A

Secernentea

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28
Q

This class includes most parasitic nematodes, as well as some free-living ones. They have phasmids and a more complex excretory system.

A

Secernentea

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29
Q

They lack phasmids, which are
sensory organs found near the tail in many nematodes. Their excretory system is simpler and they have a different structure in their mouthparts compared to Secernentea.

A

Adenophorea ( formerly aphasmidia)

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30
Q

Some examples include:
Vinegar eels (Caenorhavditis elegans)
Dorylaimid nematodes
Marine nematodes

A

Adenophorea

31
Q

This class consists of free-living nematodes, meaning they live in soil or water and are not parasitic.

A

Adenophorea

32
Q

These are internal parasites that live in the intestines of vertebrates. They have long, segmented bodies and lack a digestive system, absorbing
nutrients directly from their host’s food.

A

Cestoda (tapeworms)

33
Q

These are internal parasites that can infect a wide variety of animals,
including humans.

A

Trematoda (flukes)

34
Q

They have complex life cycles that often involve multiple hosts. Some
well-known examples of flukes include the liver fluke and the blood fluke.

A

Trematoda (flukes)

35
Q

They have hooks or clamps to attach themselves to their hosts and typically spend their entire lives on a single host.

A

Monogenea

36
Q

These are external parasites of fish, amphibians, reptiles, and some marine mammals.

A

Monogenea

37
Q

They have a simple digestive system with a single opening that functions as both a mouth and an anus. Some are known for their remarkable
REGENERATIVE abilities.

A

Turbellaria (planarians)

38
Q

These are mostly free-living flatworms found in saltwater,
freshwater, and moist soil.

A

Turbellaria (planarians)

39
Q

can have either a polyp body form or a medusa body form, or both. Some are solitary, while others are colonial. Colonial can form large colonies that look like plants or feathery structures. Some examples include hydras, Portuguese man o’ war, and
fire corals.

A

Hydrozoa

40
Q

are some of the most venomous cnidarians, and their sting can be deadly to humans.

They are found in tropical and subtropical waters around the world. Some examples include the Irukandji jellyfish and the Australian box jellyfish.

A

Cubozoa

41
Q

these cnidarians are known for their cube-shaped bodies and four tentacles.

A

Cubozoa

42
Q

are known for their stinging cells,
which they use to capture prey and defend themselves.

Some examples include the lion’s mane jellyfish and the moon jellyfish.

A

Scyphozoa

43
Q

They are free-swimming cnidarians with bell-shaped bodies and tentacles that drag behind them.

A

Scyphozoa

44
Q

mostly sessile, meaning they attach themselves to a substrate and don’t move around much.

A

Anthozoa

45
Q

They come in a wide variety of shapes and sizes, and many species are brightly colored. Some examples include sea anemones, sea pens, and corals.

A

Anthozoa

46
Q

these cnidarians only have a polyp
body form in their life cycle. They lack the medusa stage.

A

Anthozoa

47
Q

feed on detritus, or decomposing organic matter, that they suck up from the seafloor.

A

Holothuroidea (sea cucumber)

48
Q

are leathery elongated echinoderms
with skin. They move by slowly contracting and expanding their bodies.

A

Holothuroidea ( sea cucumber)

49
Q

___have feathery arms that they use to filter food particles from the water.

A

Crinoidea (sea lilies and feather stars)

50
Q

live attached to the seafloor by a stalk. ____ are similar to ___ but they do not have a stalk and can move freely.

A

Feather stars
Sea lilies

51
Q

They use their tube feet to move and feed on algae.

___ have a mouth on the underside of their body, while ___have their mouth on their upper side.

A

Echinoidea
Sea urchins
Sand dollars

52
Q

have a spherical or flattened body covered in spines.

A

Echinoidea (sea urchins and sand dollars)

53
Q

They can move very quickly by rapidly whipping their arms. Unlike sea stars, ___ can regenerate entire arms if they are broken off.

A

Ophiuroidea (brittle stars)

54
Q

resemble sea stars, but their arms are long and thin and sharply separated from the central disc.

A

Ophiuroidea ( brittle stars)

55
Q

They use their tube feet, tiny hydraulic structures on the underside of their arms, to move and feed.

A

Asteroidea ( sea stars)

56
Q

feed on the blood of vertebrates or invertebrates.

A

Hirudinea ( leeches)

57
Q

They lack both parapodia and bristles, and have suckers at both ends of their bodies for
attachment.

A

Hirudinea (leeches)

58
Q

They are most familiar to us as earthworms, but also include freshwater worms like sludgeworms and tubificids.

They use tiny bristles for locomotion.

A

Oligochaetes (few bristles)

59
Q

Oligochaetes means

A

Few bristles

60
Q

terrestrial or freshwater worms that lack parapodia and have a reduced head.

A

Oligochaetes

61
Q

They have a head with sensory organs and a distinct first
segment.

Comes in a wide variety of shapes and sizes, from tiny worms less than a millimeter long to giant deep-sea worms that can grow over 3 meters long.

A

Polychaetes

62
Q

Polychaetes means

A

Many bristles

63
Q

are mostly marine worms with well-developed appendages called parapodia on most segments, which they use for swimming, burrowing, and feeding.

A

Polychaetes

64
Q

They live in marine sediments and feed on plankton and other small organisms that drift by.

A

Scaphopoda

65
Q

also known as tusk shells, are foot-first burrowers with a long, pointed shell that is open at both ends.

A

Scaphopoda

66
Q

They live in marine habitats and are predators.

A

Cephalopoda

67
Q

the most intelligent and active invertebrates, including
octopuses, squids, cuttlefish, and nautiluses.

They have a well-developed nervous system and complex sense organs.

A

Cephalopoda

68
Q

live in a wide variety of habitats,
including marine, freshwater, and terrestrial environments.

A

Gastropoda

69
Q

They have a single, coiled shell that
they can withdraw into for protection.

A

Gastropoda

70
Q

predators, move fastly and 2 legs per segment

A

chilopoda

71
Q

scavenger of dead fish

A

hagfish

72
Q

long body and has a circle scales (kaliskis)

A

holocephali

73
Q
A

1. ZOOLOGY (11 decks)

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