Yellowish edges appear in leaves deficie | Class 11 Biology Chapter Mineral Nutirtion, Mineral Nutirtion NCERT Solutions

Define a taxon. Give some examples of taxa at different hierarchical levels.

What are the steps involved in formation of a root nodule?

Write the differences between:
(a) Blood and Lymph
(b) Open and Closed system of circulation
(c) Systole and Diastole
(d) P-wave and T-wave

What is the commercial source of cork? How is it formed in the plant?
 

An organism has two pair of chromosomes (i.e., chromosome number = 4). Diagrammatically represent the chromosomal arrangement during different phases of meiosis-II.

In swampy areas like the Sunderbans in West Bengal, plants bear special kind of roots called _____________.

Describe briefly the three physical properties of water which helps in ascent of water in xylem.

Comment on the experimental setup
a. What does the setup demonstrate?
b. What will happen to the level of water if a blower is placed close to setup.
c. Will the mercury level fluctuate (go up/down) if phenyl mercuric acetate is sprayed on leaves?

Name the process by which a tadpole develops into an adult frog.
 

Stolon, offset and rhizome are different forms of stem modifications. How can these modified forms of stem be distinguished from each other?