Flatworms, Roundworms, and Segmented Worms

Which structure takes blood towards the anterior region (the head)

A group of nerve cells is referred to as

How many germ layers does a flatworm develop from?

Compared to other worm phylas, Annelids are very diverse and complex because of their

This structure is secreted by the epidermis and prevents roundworms from drying out

The thicker segment in earthworms that resembles a band-aid and is the

Planaria have the ability to detect light using their?

The earthworm has a developed circulatory system thanks to the presence of

An earthworm becomes thinner when the

Nematodes have the following body cavity

True/False: Roundworms have a circulatory system

What separates the body sections in Annelids?

Hooks and suckers on the tapeworm's head are used for

Platyhelminthes never have which system?

Tapeworms are specialized for a parasitic way of life by the excessive development of their

Pictured below is a(n)________

Why are Annelids called Annelids

In the lifecycle of a tapeworm, the intermediatehost contains the

Flatworms show ________ symmetry 

Nematoda belongs the the kingdom

Which of the following are free-living flatworms?

What types of muscles do nematodes have?

Which of the following is NOT found in the phylum Nematoda?

Excretory cells in planaria that help maintain water balance and can rid of some wastes.

Marine annelids belong to this class

The pork tapeworm belongs to the phylum

What is the muscular tube used for ingestion that extends from the flatworm's body?

The only class of free living flatworms are the _______

Highly reproductive sections of the tapeworm are called?

Cephalization means the concentration of nerves is at the ____ end of the animal

The class Hirudinea includes the

True/False: Nematodes have a complete, one-way digestive tract.

The host usually does not know a leech is sucking its blood because

Which organ functions in passing undigested food to the crop?

how many openings does a flatworm have?

What term refers to the body segments seen in tapeworms?

Annelids have these excretory structures to get rid of metabolic wastes (similar to kidneys)

An animal that contains both male and female sexorgans is called a

What type of circulatory system does an earthworm have?

What structure functions in the uptake of nutrients