MCQ
In amphibia, the heart has
- ATwo auricles and two ventricle
- ✓Two auricles and one ventricle
- COne auricle and two ventricles
- DOne auricle and one ventricle
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| List $- I$ | List $- II$ |
| $(a)$ Scapula | $(i)$ Cartilaginous joints |
| $(b)$ Cranium | $(ii)$ Flat bone |
| $(c)$ Sternum | $(iii)$ Fibrous joints |
| $(d)$ Vertebral column | $(iv)$ Triangular flat bone |
Choose the correct answer from the options given below.
$(a)- (b) -(c) -(d)$
$(i)$ Head is formed by the fusion of $6$ -segments.
$(ii)$ Mouth parts are biting and chewing type.
$(iii)$ Crop is the part of mid gut.
$(i)$ Plant cells have centrioles which are absent in almost all animal cells.
$(ii)$ Ribosomes are the site of protein synthesis.
$(iii)$ The middle lamella is a layer mainly of calcium carbonate which holds the different neighbouring cells together.
$(iv)$ In animal cell, steroidal hormones are synthesized by smooth endoplasmic reticulum.
Of the above statements