1. no eyelids
2. movable eyelids
3. immovable eyelids
4. eyelids placed in pouches
immovable eyelids
1. syncytium
2. synsacrum
3. keel
4. furculla
synsacrum
1. Prototherians
2. Metatherians
3. Eutherians
4. Therians
Metatherians<br>
1. SO2 (sulphurdioxide)
2. carbon particles
3. dust particles
4. pesticides
SO<sub>2</sub> (sulphurdioxide)<br>
1. thrombin
2. prothrombin
3. thromboplastin
4. all of these
thrombin
1. ratitae
2. carinatae
3. odontognathae
4. impennae
impennae
1. silver nitrate
2. mercuric chloride
3. methyl isocyanate
4. crude oil
mercuric chloride
1. lymphocytes and monocytes
2. eosinophils and basophils
3. lymphocytes and eosinophils
4. basophils and monocytes
lymphocytes and monocytes
1. parotid glands
2. sublingualglands
3. lingual glands
4. maxillary glands
parotid glands<br>
1. genus and family
2. genus and species
3. species and sub species
4. phylum and genus
genus and species<br>