Annelids

True/False

Indicate whether the sentence or statement is true or false.

Different regions of an annelid’s body specialize for different functions.

Some leeches have become specialized to a parasitic way of life by developing the ability to suck blood from the bodies of other organisms.

Multiple Choice

Identify the letter of the choice that best completes the statement or answers the question.

Twisting of the visceral mass of gastropods is called

Among the various species of gastropods, respiration may take place

Segmented worms are known as

Each segment of an annelid

The evolution of tremendous diversity in the phylum Annelida is due primarily to

A similarity between annelids and arthropods is that they both have

Segmented worms are known as

     

Refer to the illustration above. Which two organisms in the diagrams have segmented body plans?

Coordinated movements of an annelid’s body segments are possible because of the

Of the four basic types of tissue, the tissue that is specialized to transmit and receive messages in the body is

earthworm movement : circular muscles and setae ::

The digestive tube of annelids is divided into three regions. Which of the following is not among these regions?

The advantage of a closed circulatory system over an open circulatory system is that

Of the following organs, the one that does not exist in annelids is the

The clitellum of an earthworm

Earthworms are considered to be beneficial to the environment because

The basic body plan of an annelid

Parapodia are involved in all of the following except