Cnidaria

What is the largest class of Cnidarians? Includes sea anemones and corals

• scyphozoa

• cubozoa

• hydrozoa

• Anthozoa

Jellyfish and their relatives are considered: 

• Monoblastic with only one germ layer

• Diploblastic with two germ layers

• Triploblastic with three germ layers

• Quadroblastic with four germ layers

Jellyfish and their relatives have what type of symmetry

• Bilateral symmetry

• Asymmetry

• Antiparallel symmetry 

• Radial symmetry

The process in which a polyp can produce many free-swimming medusae is:

• Budding

• Regeneration

• Strobilation

• Stagnation

The cnidarian nervous system is composed of:

• brain

• Nerve clusters

• Nerve net

• They have no nervous system

Anthozoa refers to:

• Umbrella animals

• cup animals

• flower animals

• rock animals

In a cnidarian, such as a jellyfish, digestion primarily occurs in the:

• oral cavity

• digestive tract

• tentacles

• gastrovascular cavity

The motile larva of a jellyfish is a(n)

• Zooid

• Planula

• Ephyrae

• Bud

How are box jellies different from true jellyfish

• Box jellies can see images while true jellies only detect light.

• Box jellies have both a mouth and anus while true jellies have only a mouth.

• Box jellies have no known predators which true jellies are food

• They are the same

Where do we frequently find box jellies?

• Northern Australia

• Southeast Asia

• Western United States

• South America