Porifera, Echinoderms, and Cnidarians Test

How do cnidarians latch onto prey?

A). Through their barb like nematocysts which penetrates and latches onto prey

B). Soley using their sticky tentacles to glue themselves to prey

C). Through the sheer force and strength of their bodies

D). They do not latch onto prey, cnidarians just eat prey whole

What is most echinoderm larva starting symmetry?

a. Bilateral symmetry

b. Radial symmetry

c. Asymmetry

d. Transverse symmetry

Patrick the Starfish was out jellyfishing with his friend Spongebob when he fell off a cliff and lost his arm. Which of the following will happen next?

a. His arm will regenerate

b. His lost arm will continue to wiggle around until it dies

c. His lost arm will regenerate a new Patrick

d. A and B only

e. A and C only

f. None of these

Which layer of tissue in an Echinoderm organism is known as the digestive tract?

a. Mesoderm

b. Endoderm

c. Ectoderm

d. Mesoglea

What are the classes of the phylum Echinodemia known as sea flowers?

a. Crinoidea and Concentricycloidea

b. Ophiuroidea and Crinoidea

c. Asteroidea and Ophiuroidea

d. Echinoidea and Holothuroidea

Which of the following symmetries do cnidarians possess?

I. Radial symmetry

II. Biradial Symmetry

III. Asymmetry

A). II and III

B). I and II

C). I, II, and III

D). None of the above

What body forms can a Cnidaria take?

A) Medusa

B) Polyp

C) Asconoid

D) Syconoid

E) A and B

F) C and D

Put the following Cnidaria reproduction events in order

I. A Planula creates a colony

II. Adult Medusa sexually reproduce

III. Strobilation occuring creating ephyra

A) I., II. III.

B) II. I. III.

C) III. I. II

D) These are not Cnidaria reproduction events

What do hydrozoans usually have that is planktonic larval stage?

A.) Phagocytize

B.) Medusa

C.) Polyp

D.) Planula

E.) Cilia

Sponge development is

A) Direct

B) Indirect

C) Physical

D) Original

E) A and C

F) D and A

Which of the following do Porifera not filter from the water?

A) Carbon

B) Nitrogen

C) Phosphorus

D) Oxygen

E) A and C

Porifera reproduce…

A) Sexually

B) Asexually

C) Both

D) None of the above

T/F Sponges have internal organs and tissues. If false make a correct statement.

T/F Porifera are Symmetrical. If false state the type of symmetry they have.

T/F Echinoderms are dipoblastic organisms

T/F Echinoderms have a skeleton

T/F Sea Urchins have a radial arrangement of organs

T/F Porifera are strictly filter feeders; correct statement if false

T/F A hydrostatic skeleton makes up the majority of a Cnidaria.

T/F The Cnidaria has a tripoblastic embryo.

T/F The class Scyphozoa lacks the medusa stage.

T/F Cubozoans live in warm, tropical waters. They have very danerous nemacysts.

The animals depicted in the image above are several different types of an animal called a myxozoan. It is an incredibly small organism that feeds off of living hosts. (it eats them from the inside out). It resembles a protozoa but is still a part of the animal kingdom. Later in its life cycle it leaves its host to mate. Given that it is classified as a part of phylum Cnidaria, what else can you tell me about it?

How does the Echinodemia species reproduce, describe it?

What does oeides mean (fill-in)?

What are the names of echinoderms' two stomachs (fill in)?

The skeleton of a sponge is mostly composed of _______ and _______

What are the types of cells that make up a porifera and what do they do?

Explain the structural differences between the class Homoscleromorpha and Demospongiae regarding why Homoscleromorpha was separated from the class Demospongiae.

Explain the three requirements for multicellular organisms, be precise.