In ferns, the xylem is
The shape of the outer part of the ear is like a ..........
The male sex hormone is
Which of the following is not a plant hormone?
DPT vaccine is administered to prevent diseases like
The waste management technique that involves the use of micro-organisms to remove or neutralize pollutants from contaminated site is called
Which is the largest gland in human body?
........... determines colour, texture, chemical properties, minerals content and permeability of soil.
The growth of bacteria is measured by