MCQ
Which of the following is an immovable joint?
- AJoint in the arm
- ✓Joints between teeth
- CJoint between vertebrae
- DAll of the above
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$(i)$ 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