Anatomy
Vocabulary
Sponges & Jellyfish
Worms
Mollusks & Echinoderms Echinoderms
Animal Attributes
100
The type of symmetry found in dogs
What is bilateral?
100
An organism that possesses both male and female reproductive organs is...
What is hermaphroditic?
100

The sessile stage of the cnidarian life cycle.

What is the polyp?

100
Platy- means...
What is flat?
100
The shell of a mollusk
What is a valve?
100

Arrangement of physical features that contribute to structure and form

Body Plan

200
The area where food enters a starfish.
What is the mouth?
200
The arms of a starfish
What are rays?
200
The phylum that has organisms with harpoon-like nematocysts.
What is Phylum Cnidaria?
200
The body sections of a tapeworm.
What are proglottids?
200
The respiratory organs of mollusks
What are gills?
200

They obtain their food for energy and growth from other organisms

Heterotrophs

300
The caudal region of a snake would be its...
What is tail?
300
The body cavity of an animal
What is the coelom?
300
Cells that move in the mesenchyme of sponges.
What are amoebocytes?
300
The anterior end of the tapeworm is called the...
What is the scolex?
300
A scraping, tongue-like structure in snails is...
What is the radula?
300

Exchange gases with the environment to continue life-sustaining cell processes

Respiration

400
The underside or the lower body surface
What is ventral side?
400
An organism that is permanently attached to the ground.
What is sessile?
400
Flagellated cells that beat vigorously to generate the water current that passes through a sponge.
What are collar cells?
400
The organ that removes metabolic wastes in earthworms
What is the nephridia?
400
The system the starfish uses for moving around and capturing food.
What is the water-vascular system?
400

Transport materials through their bodies to get nutrients to where they're needed.

Circulation

500
You and a friend find a starfish at the beach. Explain what may cause one of its rays to be much smaller than the others.
Must use the term regeneration.
500
A muscular throat cavity
What is the pharynx?
500
The phylum of the worm Ascaris.
What is Nematoda?
500
An earthworm's "brain" is actually a pair of...
What is ganglia?
500
The phylum of clams
What is Mollusca?
500

Support inside the body

endoskeleton

600

Have no left and right sides and can be divided by a plane through their center in several places to form mirror images

Radial Symmetry

600

Animals with backbones

vertebrates

600

Number of germ layers in a sponge

No germ layers

600

Types of worms which contain parasitic species.

What are flatworms, roundworms, and segmented worms?

600

Water is circulated through this pair.

What are siphons?

600

Support outside the body

Exoskeleton

700

Animals with no symmetry

Asymmetrical

700

Animals that do not have backbones make up 97% of all animals

Invertebrates

700

Means of movement in adult sponges

They are sessile; no movement

700

An earthworm is this type of worm.

What is a segmented worm?
700

The substance of which most echinoderms' exoskeleton is made.

What are ossicles?

700

forming animals after their own kind

Reproduction

800

Germ layer where muscular and circulatory systems are derived

Mesoderm

800

Bears live young, but the young have no placental connection with their mother

Ovoviviparous

800

Two forms in which the cnidarians exist

What are the polyp and medusa?

800

The dead organic matter which is made into nutrient-rich castings by the earthworm

What is detritus?

800

The greatest presence of echinoderms is found in one of these.

What are the deep ocean zones and the intertidal zone?

900

The relationship between coral and algae.

What is symbiotic?

900

Provides support to the sponge wall

What are spicules?

900

Type of worms which have a coelom.

What are segmented worms?

900

Clams, oysters, and scallops, besides being called mollusks, are also known as

What are bivalves?

1000

Three major groups of worms and an example of each

What are roundworms (Ascaris), flatworms (tapeworm, fluke, planarian), and segmented worms (earthworm, leech)?

1000

An echinoderm's water-vascular system opens to its watery environment by means of this sieve-like structure.

What is a madreporite?

1100

Five echinoderm class examples

What are Brittle star, starfish, sea lilies, sea cucumber, and sea urchin? (pg. 326)

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