MCQ
Open vascular system is found in
- AMan
- BFish
- ✓Prawn
- DSnake
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$(i)$ It is a contractile tissue present only in the heart.
$(ii)$ Cell junctions fuse the plasma membranes of these cells and make them stick together.
$(iii)$ Communication juntions at some fusion points allow the cells to contract as a unit, i.e., when one cell receives a signal to contract, its neighbours are also stimulated to contract.
Which of the following type of tissue is being described by the above statements?
| Column $- I$ | Column $- II$ |
| $(a)$ Floating Ribs | $(i)$ Located between second and seventh ribs |
| $(b)$ Acromion | $(ii)$ Head of the Humerus |
| $(c)$ Scapula | $(iii)$ Clavicle |
| $(d)$ Glenold cavity | $(iv)$ Do not connect with the sternum |
$(a)\quad(b) \quad(c) \quad(d)$
Statement $I:$Mycoplasma can pass through less than 1 micron filter size.
Statement $II:$Mycoplasma are bacteria with cell wall
In the light of the above statements, choose the most appropriate answer from the options given below: