Question 3421 Pollen grains in plants are produced in? A) roots B) leaves C) flower D) stem No Details
Question 3422 Pollination by wind is called? A) anemophily B) hydrophily C) zoophily D) entomophily No Details
Question 3423 Plants that grow under average temperature and moisture are called? A) halophytes B) hydrophytes C) mesophytes D) xerophytes No Details
Question 3424 One of the following is most suitable for study of mutations? A) Haploids B) Diploids C) Tetraploids D) Polyploid No Details
Question 3426 Most common disease of poultry in India is? A) fowl pox B) tick fever C) ranikhet D) coryza No Details
Question 3428 Organic Substances which, in very small amounts, control growth and development called? A) vitamins B) hormones C) enzymes D) None of the above No Details
Question 3429 Radioactivity is a phenomenon of the spontaneous emission of? A) protons (alpha particles) B) electrons (beta particles) C) gamma rays (short wave electromagnetic waves) D) All of the above No Details
Question 3430 Pigmentation of skin is due to? A) lymphocytes B) monocytes C) leucocytes D) melanocytes No Details