Echinodermata
Cnidaria
Mollusca
Annelida
Arthropoda
100

What type of symmetry do Echinoderms have?

Radial symmetry

100

What is vascular tissue and what is its function?

It is made of tubelike cells forming structures that transport water and nutrients.

100

What organ system do mollusks have?

Open Circulatory

100

Why are annelids different from flat and round worms?

Have segments
100

Which group of Arthropods includes the most species, the largest and most diverse class?

Hexapods (Insects)

200

What is the only group of Echinoderms that doesn’t have arms?

Sea Cucumbers

200

What are the two main kinds of Cnidaria?

  1. True Corals and Anemones (Anthozoa)
  2. Jellyfish (Scyphozoa)
200

What are the four main functions if the "foot" in mollusks?

1. Locomotion

2. Digging

3. Grasping

4. Attachment

200

Where can annelids be found on Earth?

Almost anywhere

200

What is an exoskeleton and what is it made of?

A hard external shell made of chitin.

300

What does the word Echinoderm mean?

Spiny Skin

300

What is the main characteristic of Cindaria?

Cnidarian tentacles have organelles called nematocysts that eject venomous toxins. They also have cnidocytes.

300

What are the three main types of mollusks?

1. Snails (Gastropods)

2. Clams (Bivalves)

3. Octopus (Cephalopods)

300

What are parapodia and what is its function?

Leg-like growths used for movement on each segment of the body.

300

What are three main characteristics all Arthropods share?

1. Open circulatory system

2. Exoskeleton

3. Jointed Appendages

400

List the four main kind of Echinodermata

  • Asteroidea (Sea stars)
  • Ophiuroids (Brittle and basket stars)
  • Echinoids (Sea urchins and sand dollars)
  • Holothuroidea (Sea cucumbers)
  • Crinoidea (Sea lilies)
400

Why are comb jellies NOT Cnidarian?

They can't sting

400

What kind of symmetry do mollusks have?

Bilateral Symmetry

400

What is a coelom?

A body cavity to house internal organs.

400

How to Arthropods reproduce?

Sextually, internally fertilize eggs, and lay the eggs externally.

500

What are the segments of a Sea Lily called?

Crown, stalk, and holdfast


500

What are cnidocytes?

Explosive hair-like cells (triggers) that contain nematocysts (Eject venomous toxins)

500

In Gastropods where is the stomach and what is it attached to?

The stomach attaches to a muscular "foot", which attaches to the base of the head.

500

What are the three kinds of Annelida?

  1. Polychaeta: Marine, with many bristles and parapodia (e.g., sandworms)
  2. Oligochaeta: Mostly terrestrial or freshwater, fewer bristles, no parapodia (e.g., earthworms)
  3. Hirudinea: Ectoparasitic or predatory, flattened body with suckers (e.g., leeches)


500

Which one is not an arthropod?

1. Blue Crab

2. Mosquito

3. Lobster

4. Scallop 

Scallop

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