Exoskeleton

Q.

How do Annelid animals differ from Arthropods? Explain.

Q. Which of the following organisms have exoskeleton?

1. Nereis
2. Pheretima
3. Leech
4. Housefly

Q. Chitinous exoskeleton and metameric segmentation are features of the phylum

1. Annelida and Arthropoda, respectively
2. Arthropoda and Aschelminthes, respectively
3. Annelida and Aschelminthes, respectively
4. Arthropoda and Annelida, respectively

Q.

Is aschelminthes motile or non motile?

Q. State whether true or false:
The exoskeleton of arthropods is made up of lignin.

1. True
2. False

Q.

Term ‘Agnatha’ refers to

1. Jaw-less fishes

2. Bony fishes

3. Cartilaginous fishes

4. None of these

Q.

Segmented worms belong to:

1. Platyhelminthes

2. Nematoda

3. Annelida

4. Arthropoda

Q. Which of the following organisms have exoskeleton?

1. Nereis
2. Pheretima
3. Leech
4. Housefly

Q.

What are the differences between the following:

Cartilaginous fishes and bony fishes.

Q. Which type of exoskeleton is seen in arthropods?

1. Gelatinous
2. Calcified.
3. Chitinous.
4. Siliceous.

Q. Pick the wrong statement(s) from the following:

1. Animals belonging to phylum-Porifera are exclusively marine.
2. Mullipedes have two pairs of appendages in each segment of the body.
3. Prawn has two paris of antennae.
4. Nematocysts are characteristic of the phylum-Cnidaria.

Q. Chitinous exoskeleton and metameric segmentation are features of the phylum

1. Annelida and Arthropoda, respectively
2. Arthropoda and Aschelminthes, respectively
3. Annelida and Aschelminthes, respectively
4. Arthropoda and Annelida, respectively

Q. State whether true or false:
The exoskeleton of arthropods is made up of lignin.

1. True
2. False

Q. Region of Earthworm which is forest of nephridia is

1. Clitellar region
2. Typhlosolar region
3. Pharyngeal region
4. Intestinal region

Q. Exoskeleton of arthropods is composed of

1. Glucosamine
2. Cellulose
3. Chitin
4. Cutin