MCQ
Cockroach crushes food with the help of its:
- ALabium
- BFirst maxillae
- CMandibles
- DAntennae
Explanation:
Digestion begins first at the mouth where the parts like mandibles and maxillae help to chew the food.
The mandibles cut off pieces of food and crush them before they are swallowed.
The other mouthparts help select the food and manipulate it between the jaws.
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Statement $I$: Parenchyma is living but collenchyma is dead tissue.
Statement $II$ : Gymnosperms lack xylem vessels but presence of xylem vessels is the characteristic of angiosperms.
In the light of the above statements, choose the correct answer from the options given below: