Ch_33_Invertebrates_Part_1 Flashcards Preview

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Flashcards in Ch_33_Invertebrates_Part_1 Deck (158)
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Phylum Porifera common term

The Sponges

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number of marine species in Porifera

7000

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Porifera have _ adults and _ larvae

Sessile and Swimming

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Sponge 3 layers

Outer Epidermis, Mesohyl, Spongocoel

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How does water enter and exit Sponge Outer Epidermis

enters incurrent Ostia and exits through Osculum

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what is the Mesohyl

middle layer that consists of gelatinous matrix

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What does the Mesohyl gelatinous layer have?

spongin, spicules, and amoebocytes

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Inner layer of Sponge

Spongocoel

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Spongocoel is lined with _ to _ water

choanocytes, circulate

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Sponge cell types

collar cells, amoebocytes

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What are Sponge collar cells and what do they do?

flagellated choanocytes, circulate water

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What do Sponge Amoebocytes do?

move with pseudopods, clean pores, secrete spongin and spicules

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Sponge body forms

Asconoid, Syconoid, Leuconoid

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3 type of sponges

glass, chalk, commercial

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glass sponge

spicules and spongin made of silica, provide support

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chalk sponge

spicules and spongin made of calcium carbonate

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commercial sponges

spongin only, no spicules

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sponge spicules types

calcareous, Hexactinellida, Domespongiae, spongin

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3 types of Phylum Cnidaria animals

jellyfish, corals, hydrozoans

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Cnidaria defining characteristic

nematocytes (cnidocytes), sting prey

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Cnidaria 2 tissue layers and seperating part

outer epithelium, inner epithelium, mesoglea

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2 types of Cnidaria bodies

Medusa and Polyp

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Cnidaria body structure parts

tentacles, nerve net, 2 tissue layers, stinging cells (nematocytes), mesoglea

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nematocysts definiton

specialized organelles in nematocytes (cnidocytes) to sting prey

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Classes of Phylum Cnidaria

hydrozoa, schphozoa, cubozoa, anthozoa

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Class Hydrozoa forms

medusa and Polyp

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Class Schphozoa forms

Medusa prominent

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Class Cubuzoa forms

Medusa prominent

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Class Anthozoa forms

Polyp only

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Hydra is a _ water animal

fresh

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Hydra has a mobile _ body

polyp

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Number of Hydra tissue layers

2

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What does a hydra use the Epidermis for

catch food with cnidocytes

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What does a hydra use Endordermis for

digestion

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What is the hydra mesoglea

middle layer with gellatinous liquid

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Hydra sperm created in _ and eggs created in _

tests, ovaries

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Hydra are _phroditic

Hermaphroditic

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Hermaphroditic definition

male and female on same body

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Planula larvae comes from _

Fertilized Hydra zygote

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Zooplankton

part of Hydra sexual reproduction? need to look this up

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Hydra asexually reproduce through _

budding

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Physalia is part of class _

Hydrozoa

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Physalia common term

Portugueses Man-O-War

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Physalia live in _ environments

marine

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Physalia have a Multi-Polyp or Medussa body stile

Multi-Polyp

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Word for floating air bladder on Physalia

pneumatophore

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Physalia carry a very _

dangerous toxin

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Class Scyphozoa common term

True Jellyfish

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True Jellyfish are mostly Medusa or Ployp form

Medusa

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Most Jellyfish have colors?

no, most are colorless

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T/F Jellyfish are easy to see in the water

F, nearly invisible

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Jellyfish reproduce with _

planula larvae

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Class Cubozoa common term

Box Jellies

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Cubozoa hava Dominant Medusa or Polyp form

Medusa

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Cubozoa characteristics

strong swimmers, rudimentary eyes that form images, strong sting, fish predators

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Class Anthozoa common term

Corals and Anemones

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Anemone body form

sessile Polyp

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T/F Anemone have stinging tentactles

T

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Anemone asexually reproduce through _

budding

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T/F Anemone never build reefs

F, some build reefs

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3 types of Corals reefs

Fringing reefs, Barriers, Atolls

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Fringing reef grows off of an _

island

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Barrier reef creates a _ between reef and mainland

lagoon

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Another word for a circular fringing reef

Atoll

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How does Atoll form

starts as fringing reef, but island erodes leaving Atoll

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Phylum Ctenophora common word

The Comb Jellies

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How do Ctenophore move

via 8 rows of thick cilia

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T/F Ctenophores will sting

F, Ctenophora have no stinging cells

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How do Ctenophores capture food

utilizing 2 long sticky tentacles

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Why are Ctenophora tenticles sticky?

contain colloblasts that secrete mucous-like adhesive

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Some deep water Ctenophora emit light, this is a trait known as _

Bioluminescence

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Common term for Ctenophora

Sea Walnuts

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Phylum Platyhelminthes common term

The Flat Worms

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Classes of Platyhelminthes

Turbellaria, Trematoda, Cestoda

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Turbellaria another term

Planaria

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Cestoda another term

Tapeworms

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Trematoda another term

Flukes

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Platyhelminthes characteristics

bilateral symmetric acoelomate body, three tissue layers

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3 tissue layers of Platyhelminthes

ectoderm, mesoderm, endoderm

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How do Platyhelminthes secrete small materials

thick protein cuticle/specialized ciliated cuticle with flame cells

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How do Platyhelminthes secrete large wastes

excrected into gut and out mouth

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This phylum had the first brain

Platyhelminthes, 1st brain

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What was Platyhelminthes 1st brain called

nerve ganglion

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The Platyhelminthes nerves are arranged in a _ shape

ladder-like

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T/F Platyhelminthes are hermaphroditic

T

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What is the advantage of Platyhelminthes being hermaphroditic

doubles reproductive rate

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Class Tubellaria length

1 inch

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Tubellaria have a _ cuticle

ciliated

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Whare do Tubellaria live

fresh water lakes and ponds

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This term describes when and how Tubellaria obtian nutrients

Nocturnal Saprovore

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Free-living Planaria are part of class _

Turbellaria

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Parastic Tapeworms belong to this class

class Cestoda

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What does the Cestoda scolex attach to in host

intestine

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What grows from Cestoda scole

proglottids aka body segments

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How are Cestoda eggs released

in feces

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Cestoda do not have _

digestive system

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Schistosoma belong to this class

Trematoda

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Trematoda phylum

Platyhelminthes

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Schistosoma common term

Parasitic Blood Flukes

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What does Schistosoma cause

Schistosomiasis

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What are the effects of Schistosomiasis

infected liver slowly deteriorates

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What do Schistosoma first infest

snails

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Snails are known as a _ host for Schistosoma

secondary

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Schistosoma exist in _ and _ larval form in Larvae

Cercariae and Miracidia

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How do Schistosoma infect humans?

through skin

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Who are the primary hosts of Schistosoma?

humans

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Number of deaths each year due to Trematoda

800,000

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Clonorchis common term

Chinese Liver Fluke

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Clonorchis class

Trematoda

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How are humans infected with Clonorchis

eating larvae infected raw fish

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Clonorchis _ larvae infect snails

Miracidia

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Clonorchis _ larvae infect fish

Cercariae

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Nematoda common term

round worms

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pseudoecolomate

have both anus and mouth and seperate holes

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nemotoda are _coelomate, but have no _derm support

pseudocoelomate and mesoderm

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many nematodes are _ to obtain energy

parasitic

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do nematodes have seperate sexes

yes

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How do parasitic nematodes prevent being digested when inside host

specialized cuticle

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Pinworms belong to which phylum

Nematoda

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T/F Pinworms do not spread easily

F

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Where do Pinworms usually live

lower colon and rectum

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Where does the Pinworm lay eggs

anus

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Classic symptoms of Pinworms

severe itching

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Pinworms are passed from person to person in what form

eggs

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What is sterilized to treat Pinworms

towels, bedding, etc

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Trichinella Spiralis causes _

Trichinosis

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Trichinella Spiralis phylum

Nemotoda

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How is Trichinella spiralis contracted

eating rare pork with larvae

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Symptoms of Trichinosis

painful cysts in muscle tissue

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Where does female Trichinella Spiralis burrow

intestine

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After Trichinella Spiralis burrows into instestine, it releases offspring into the _

blood

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Filarial Worms common term

Heart Worms

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Filarial phylum

Nematoda

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Microfilaria

juvenile filarial worms

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How are Trichinella spiralis microfilaria worms transmitted

mosquito bite

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Where do Heart Worms grow

heart

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What is the effect of Heart Worms

slows blood flow

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import for pet owners to give dogs _ _ to prevent Heart Worms

preventitive medicine

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Wuchereria bancrofti phylum

Nematoda

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Wuchereria bancrofti causes _

Elephantiasis

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How is Wucheria bancrofti microfilaria transmitted

mosquito

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How are microfilaria transmitted in general

mosquito bites

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How does Elephantiasis cause limbs to swell?

tangled nests of Wucheria bancrofti infect lymphatic vessels causing fluid to gather

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Nematodes generally have seperate/same sexed animals

seperate

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Ascaris phylum

Nematoda

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What do Ascaris worms infest

mammals

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Ascaris have both a _ and _ pathway

digestive, respiratory

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T/F Ascaris are all the same sex

F

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Common animal that ingests Ascaris

puppies

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Phylum Rotifera common term

Ciliated Wheel Animals

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Rotifera are _coelomate

Pseudocoelomate

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Rotifera have a _ body structure

bilateral

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Where do Rotifera live

lakes and ponds around the water

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How do Rotifera capture food

spinning ciliated corona

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Rotifera are dominant female or male life cycle

female life cycle

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Rotifera parthenogenesis produce _

eggs

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When are Rotifera males produced

fall, for winter eggs

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Many Trematoda have larvae in _ and _ forms

Miracidia, Cercariae