Phylum Annelida

Q.

Are flatworms coelomate?

Q.

Select the correct option of animal groups which possess all the characteristics.

Consider the following features:

(a) Organ system level of organization

(b) Bilateral symmetry

(c) True coelomates with segmentation of body

1. Annelida, Mollusca and Chordata.

2. Annelida, Arthropoda and Chordata.

3. Annelida, Arthropoda and Mollusca.

4. Arthropoda, Mollusca and Chordata

Q.

Is earthworm monoecious or dioecious?

Q. Earthworms and Nereis

1. are monoecious and dioecious, respectively
2. are dioecious and monoecious, respectively
3. are both dioecious
4. carry out asexual reproduction

Q.

Which of the following is not a feature of flatworms?

1. endoderm

2. mesoderm

3. ectoderm

4. pseudocoelomate

Q. The circulatory system in annelids can be

1. open
2. closed
3. both open and closed
4. closed with circulatory fluid

Q.

Select the phylum that has jointed appendages:

1. Flatworm

2. Roundworm

3. Arthropod

4. Cnidaria

Q. The distinguishing feature of animals in phylum Annelida is

1. round cross section
2. absence of coelom
3. dorsoventrally flat
4. metameric segmentation

Q.

Name the excretory organs in Platyhelminthes.

Q. Which of the following is the common characteristic found in all the worms?

1. Endo-parasitism
2. Free-living
3. Triploblastic
4. Metameric segmentation

Q. The worms that aerate soil is

1. Ascaris
2. Taenia
3. Fasciola
4. Pheretima

Q. Annelids exhibit segmentation.

1. alternate
2. parallel
3. metameric
4. coaxial

Q.

Do flatworms have a gender?

Q. Choose the organism which has true coelom:

1. Tapeworm
2. Wuchereria
3. Planaria
4. Nereis

Q. Consider following features:

(a) Organ system level of organisation
(b) Bilateral symmetry
(c) True coelomates with segmentation of body

Select the correct option of animal groups which possess all the above characteristics.

1. Annelida, Mollusca and Chordata
2. Annelida, Arthropoda and Chordata
3. Annelida, Arthropoda and Mollusca
4. Arthropoda, Mollusca and Chordata

Q. The distinguishing feature of animals in phylum Annelida is

1. round cross section
2. absence of coelom
3. dorsoventrally flat
4. metameric segmentation

Q.

The body is divided into segments in

1. Fasciola

2. Ascaris

3. Ancylostoma

4. Nereis

Q.

Leech secretes _______ as an anti-coagulant.

1. heparin

2. hirudin

3. serotonin

4. histamine

Q. Consider following features:

(a) Organ system level of organisation
(b) Bilateral symmetry
(c) True coelomates with segmentation of body

Select the correct option of animal groups which possess all the above characteristics.

1. Annelida, Mollusca and Chordata
2. Annelida, Arthropoda and Chordata
3. Annelida, Arthropoda and Mollusca
4. Arthropoda, Mollusca and Chordata

Q. The neural system of phylum Annelida consists of

1. metameres
2. parapodia
3. nephridia
4. ganglia

Q.

The clitellum is a distinct part in the body of earthworm. It is found in:

1. Segments 13-14-15

2. Segments 14-15-16

3. Segments 12-13-14

4. Segments 15-16-17