Which of the following cells in earthworm play a role similar to liver in vertebrates?
Amoebocytes
Mucocytes
Chloragogen cells
Epidermal cells
C.
Chloragogen cells
Chlorogogen cells are excretory in function. The chlorogogen cells take up excretory matter from the blood capillaries of the gut and from the coelomic fluid of the coelom. They also store glycogen and fat. So, these cells are analogous to the liver of vertebrates.
Match the following and select the correct option.
| List I | List II |
| A. Cyclostomes | 1. Hemichordata |
| B. Ayes | 2. Urochordata |
| C. Tunicates | 3. Agantha |
| D. Balanoglossus | 4. Pisces |
| E. Osteichthyes | 5. Tetrapod |
| A | B | C | D | E |
| 3 | 5 | 2 | 1 | 4 |
| A | B | C | D | E |
| 3 | 1 | 5 | 2 | 4 |
| A | B | C | D | E |
| 1 | 2 | 3 | 4 | 5 |
| A | B | C | D | E |
| 2 | 3 | 4 | 1 | 5 |
Chondrichthyes is characterised by
Placoid scale
Placoid scale and ventral mouth
Ventral mouth
Ctenoid scale and ventral mouth
Branch of zoology dealing with the study of fishes is called
Arthrology
Ichthyology
Saurology
Herpetology
Select incorrect pair
Porifera – Choanocytes
Coelenterata – Nematocysts
Annelida – Segmentation
Monera – Eukaryote
Bilateral symmetry, metameric segmentation, coelom and open circulatory system are the features of
Annelida
Arthropoda
Mollusca
Echinodermata
Correctly matched set of phylum, class and example is
Protozoa-Mastigophora-Entamoeba
Mollusca=-Bivalvia-c-Pmcrcdc
Arthropoda-Diplopoda-Scolopendra
Chordata-Cyclostomata-Phrynosoma
