Which one of the following tissues si known as basic packing tissue and found in xylem and phloem?

Which one of the following statements about phloem is correct?

Xylem is a type of complex tissue in plants for upward conduction of water. Which one of the following xylem tissues consists of living cells?

Which one of the following is an insectivorous plant?

Which one of the following is a plant hormone?

In aquatic plants, large air sacs give them buoyancy effects. These sacs are surrounded by which one of the following types of tissues?