Chapter 14: Flatworms, mesozoans, ribbon worms

Based on the chapter title 'Flatworms, mesozoans, ribbon worms', what type of organism is likely causing the infection?

• Flatworm

• Bacterium

• Virus

• Fungus

What is the difference between diploblastic and triploblastic organisms?

• Diploblastic organisms have two tissue layers, while triploblastic organisms have three tissue layers.

• Diploblastic organisms have three tissue layers, while triploblastic organisms have two tissue layers.

• Both diploblastic and triploblastic organisms have the same number of tissue layers.

• Triploblastic organisms lack tissue layers, while diploblastic organisms have them.

Most animals with a basic body plan are:

• Radially symmetrical

• Bilaterally symmetrical

• Asymmetrical

• None of the above

Which of the following is true about Protostomia?

• Blastopore forms anus

• Blastopore forms mouth

• No blastopore forms

• Blastopore forms both mouth and anus

Which of the following is true about Deuterostomia?

• Blastopore forms anus

• Blastopore forms mouth

• No blastopore forms

• Blastopore forms both mouth and anus

Name the three types of body cavity organizations mentioned in the basic body plan: ________, ________, or ________.

• Acoelomate, pseudocoelomate, or coelomate

• Diploblastic, triploblastic, or monoblastic

• Endoderm, mesoderm, or ectoderm

• Protostome, deuterostome, or mesostome

Phylum Acoelomorpha consists of small, _______ worms (not flatworms).

• flat

• round

• segmented

• spiny

Tags

NGSS.MS-LS4-2

Where do most members of Phylum Acoelomorpha live?

• In freshwater lakes

• In marine sediments

• On land

• In trees

Fill in the blank: The rootlets of ________ cilia form an interconnecting network in Acoelomorpha.

• epidermal

• flagellar

• neuronal

• muscular

Fill in the blank: Most Acoelomorpha are ________ living, some commensal, and some parasitic.

• free

• terrestrial

• arboreal

• sessile

Tags

NGSS.MS-LS2-1