Which of the following exude sap when cut?

How many types of cells constitute a simple permanent tissue?

Which of the following tissues performs the function of food storage?

Which cells are functionally associated with sieve tubes?

While eating peach or pear,it is usually seen that some stone-like structures get entangled in the teeth. What are these stone-like structures called?

Assertion : Vessels are more efficient for water conduction as compared to tracheids.
Reason : Vessels are dead lignified.