2. Xylem sap and soil water differ in because of . solute composition; selective uptake by the epidermis pH; H exclusion by the endodermis solute composition; selective uptake by mycorrhizae solute composition; selective uptake by the endodermis

Xylem sap and soil water differ in solute composition because of selective uptake by the endodermis

Explanation:

xylem sap is made up of water, minerals and plant hormones.

soil water is of three types as gravitational, capillary and hygroscopic water.

It consist of water which is an important source for carrying water and nutrients to other part of the plant.

Due to the transpiration and evaporation the pressure in the leaf xylem decreases and causes upward pull of xylem sap.

Endodermis is a waterproof partition in xylem cells and does not let water diffuse back. This allows selective uptake of solutes.

white blood cells or wbc s are mainly 2 types-

1.agranulocytes

2.granulocytes

the monocytes or macrophages of agranulocytes , dendritic cells which are accessory leucocytes, and b cells which is one type of lymphocytes   identify the antigens present on the pathogen's surface. these three cells are called antigen presenting cells(apc) which are phagocytes and destroy the antigens by secreting antitoxins. besides this leukocyte is always plays vital role in the immunity of the body.