Chapter 9: Worms Part 2

studied byStudied by 50 People
5.0(1)

Lophotrochozoan

1/24

Tags & Description

Studying Progress

New cards
24
Still learning
0
Almost Done
0
Mastered
0
24 Terms
New cards

Lophotrochozoan

These are worms that have a lophophore and trochophore

New cards
New cards

Lophophore

a ciliated feeding device

New cards
New cards

Trochophore

a larval form

New cards
New cards

Protostome

This is an animal where the blastopore develops into the "mouth". Opposite of deuterostomes

New cards
New cards

Phylum Cycliophora

- Lives on mouthparts of marine decapod crustaceans (lobsters) - Only 3 species known - Extremely small - Eats bacteria - Reproduces both sexually and asexually

New cards
New cards

Phylum Entoprocta

- Mostly are colonia - Less than 100 species - Very small (less than 5 mm) - Found under rocks and running water as well as living on shells and other things *- U-shaped digestive tract *- Cup shaped body - Digest through diffusion

New cards
New cards

Libbie Henrietta Hyman

received her Ph.D. in 1915, wrote The Invertebrates, responsible for a lot of classification of invertebrates

New cards
New cards

Phylum Ectoprocta (Byrozoans)

- Also called bryozoans or moss animals - Both fresh and marine - Colony builders that encrust firm surfaces (shells, bottoms of ships, pipes) - Have muscles that pull lophophore in - Have an operculum like mollusks - Have a Zooid and Cystid - Use tentacles to feed - Mostly hermaphroditic - Don't have organs

<p>- Also called bryozoans or moss animals - Both fresh and marine - Colony builders that encrust firm surfaces (shells, bottoms of ships, pipes) - Have muscles that pull lophophore in - Have an operculum like mollusks - Have a Zooid and Cystid - Use tentacles to feed - Mostly hermaphroditic - Don&apos;t have organs</p>
New cards
New cards

Encrust

Animals that settle on rocks, substrates, and hard surfaces. Bryozoans called Membranipora can encrust and host many tiny zooids

New cards
New cards

Polypide

This is the portion of a bryozoan that contained most of the organs and the lophophore

<p>This is the portion of a bryozoan that contained most of the organs and the lophophore</p>
New cards
New cards

Zooid

individual that comprises a feeding polypide and case-forming cystid in bryozoans

New cards
New cards

Zoecium

a calcareous home that houses a tiny zooid or polypide in byrozoans

New cards
New cards

Operculum

This contains the lophophore and is extended out into the water in order to feed

New cards
New cards

Magnificent Bryozoan (pectinatella magnifica)

This is an invasive species of bryozoans where the colonies bind together in large clumps that look to be frog eggs

<p>This is an invasive species of bryozoans where the colonies bind together in large clumps that look to be frog eggs</p>
New cards
New cards

Bryostatin-1

This is a anti-cancer treatment for tumors and other cancer related issues that is found on Bugula neritina bryozoans

New cards
New cards

Cystid

a case that forms over the zooid for protection

New cards
New cards

Statoblast

a kind of bud that survives over winter when a bryozoan colony dies in autumn

<p>a kind of bud that survives over winter when a bryozoan colony dies in autumn</p>
New cards
New cards

Phylum Brachiopoda

- Considered living fossils - Commonly called "lamp Shells" - Look like bivalved mollusks - Attached, bottom-dwelling marine forms that inhabit shallow water * Perfect symmetry - Still have a lophophore

New cards
New cards

Lingula

an inarticulate brachiopod that normally occupies a burrow, has a long "tongue like" foot

New cards
New cards

Class Articulata

class of brachiopods connecting hinge with an interlocking tooth-and-socket

New cards
New cards

Class Inarticulata

class of brachiopods held together by muscles only, allows shells to move

New cards
New cards

Phylum Phoronida

- Found in colder waters - Create tubes that they secrete to live in and anchor - Don't contain a heart but contain hemoglobin - Most are hermaphrodites while some are dioecious

New cards
New cards

Phylum Nemertea

- Ribbon worms - Most are marine - Can have multiple bright colors - Some live in secreted gelatinous tubes - Ciliated epidermis - Carnivorous - Has a complete digestive tract * Has a proboscis

New cards
New cards

Nemertean Proboscis

an eversible organ capable of stabbing another animal by turning inside out, end is sharp and allows neurotoxin into it’s prey

New cards