Bio II Unit 3 Exam Review Guide

Which symmetry term would be used to describe an animal that has a defined head, such as a dog or a cow?

• Asymmetrical

• Radial

• Pentaradial

• Bilateral

Where would you look for the ventral nerve cord on a crayfish?

• On the back side

• On the belly side

• On the head

• On the tail

What is cephalization?

• concentration of sensory tissue in the anterior end

• concentration of digestive material

• development of tissue as a part of embryology

• specialization of cells of a multicellular organism

Organisms in Phylum Porifera are known for which characteristic?

• Stinging cells - cnidocytes

• Biting cells - colloblasts

• Many pores - porocytes

• Many cilia - ciliocytes

Organisms in Phylum Cnidaria are known for which characteristic?

• Stinging cells - cnidocytes

• Biting cells - colloblasts

• Many pores - porocytes

• Many cilia - ciliocytes

We studied several classes in Phylum Cnidaria. Which class spends most of its life in the medusa form?

• Hydrozoa

• Anthozoa

• Schphozoa

• Cubozoa

Which organism did we use to study free living flatworms; part of Phylum Platyhelminthes?

• Planaria

• Ascaris

• Earthworms

• Rotifers

Tags

NGSS.MS-LS4-2

Which organism did we use to study parasitic roundworms; part of Phylum Nematoda?

• Planaria

• Ascaris

• Earthworms

• Rotifers

Tags

NGSS.MS-LS4-2

Which Phylum contains tiny multicellular animals that have "wheels" of cilia around their mouths as well as excretory tubules and flame cells showing their complexity?

• Platyheminthes

• Nematoda

• Annelida

• Rotifera

Tags

NGSS.MS-LS4-2

Organisms in Phylum Mollusca are known for which characteristic?

• a segmented body

• a soft body

• a porous body

• a stinging body