Chapter_33 - Biology, 7e (Campbell) Chapter 33:...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Biology, 7e (Campbell) Chapter 33: Invertebrates 1) What are the cells in a sponge that are primarily responsible for trapping food particles from circulating water? A) amoebocytes B) choanocytes C) mesohyl cells D) flame cells E) epidermal cells(porocytes) 2) Which of the following are not associated with sponges? A) oscula B) spongocoels C) cnidocytes D) spicules E) amoebocytes 3) A sponge's skeletal materials (spicules, spongin) are manufactured by the A) pore cells. B) epidermal cells. C) choanocytes. D) zygotes. E) amoebocytes. 4) Which chemical is not normally found in any sponges? A) chitin B) sponging C) calcium carbonate D) silica E) antibiotics 5) Which class of sponge contains the glass sponges? A) Demospongiae B) Calcarea C) Hexactenillda D) A and B E) A and C 6) A radially symmetrical animal that has two embryonic tissue layers belongs to which phylum? A) Porifera B) Cnidaria C) Platyhelminthes D) Nematoda E) Echinodermata 7) All of the following are characteristics of the phylum Cnidaria except A) a gastrovascular cavity. B) a polyp stage. C) a medusa stage. D) cnidocytes. E) a pseudocoelom.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
8) What is the best way to describe the brain of a sea anemone? A) a thick ring around the mouth B) a series of ganglia at the base of the tentacles C) a pair of ganglia at the anterior end D) a single ganglion in the body wall E) nonexistent 9) Which of the following is a correct statement about members of the phylum Cnidaria? They A) are not capable of locomotion because they lack true muscle tissue. B) are primarily filter feeders. C) have either or both of two body forms: mobile polyps and sessile medusae. D) use a gastrovascular cavity for extracellular digestion. E) are the simplest organisms with a complete alimentary canal (two openings). 10)
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 5

Chapter_33 - Biology, 7e (Campbell) Chapter 33:...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online