Chapter 25/Sponges/Cnidarians Review

What is a body cavity?

Nerves branch from which of the following structures?

Which of the following develops into either the mouth or the anus?

What is the name of the pores that lead to the interior of a sponge where water enters?

An animal that has body parts that extend outward from its center shows

A true body cavity, one that is within the mesoderm, is called a(n)

Which type of reproduction helps a species maintain genetic diversity?

What is the name of a young medusa that develops from a polyp?

The jellylike layer between the 2 cell layers in cnidarians is the what?

What type of symmetry do cnidarians have?

Which of the following are required for an animal to survive?

Anterior, posterior, dorsal & ventral refer to organisms that have which type of symmetry?

How do cnidarians respire and excrete?

A needlelike structure that supports the soft tissue of certain invertebrates is called what?

If an organism has left and right halves that are mirror images, then it has ___ symmetry.

Which system is involved in responding and collecting information?

A hollow ball of cells that develops from a zygote is a

A fertilized egg is called a what?

How is ammonia, a waste, removed by the body?

What are the cell layers cnidarians have?

Where does water leave a sponge?

Which of the following is NOT a class of cnidarians?

What is the outermost layer that develops into skin and sense organs?

What type of fertilization do sponges have if they reproduce sexually?

An organism that is attached and nonmotile is called what?

What are the stinging cells of cnidarians?

Both cnidarians and sponges have complete nervous systems

The outer cell layer is the

95% of all animal species are invertebrates

The free-swimming body form of a cnidarian is called the what?

Which of the following animal functions rids the body of nitrogen-containing wastes?

The simplest animals to have specialized tissues are called what?

The flagellated cells that draw water into a sponge are called what?

Which feedback system do animals use to maintain homeostasis?

Where is the hollow nerve cord located on a chordate?

Animals without backbones are called

How do a polyp and medusa reproduce asexually?

What phylum are sponges classified under?

Which germ layer develops into muscles?

Which of the following does not apply to the animal kingdom?

Which of the following is radially symmetrical?

Which of the following does NOT apply to you?

An animal that has no definite symmetry has _____.