What is the role of salt gland present on the surface of the leaves of Sundari?

Vegetative organs indicate convergent evolution.

What information related to evolution can be obtained from the discussion on comparative structure of hearts of different vertebrate groups ? Explain the following two terms in the light of Darwinism - (a) Survival of the fittest (b) Natural selection OR Explain the evolutionary significance of homologous and analogous organs with the help of example. What are the adaptive significances of air sacs of Pigeon ? [3+2=5]

What types of struggle for existence can be found among the animals of a forest over eating meat of a freshly killed prey?

Explain the theory of Darwin with regard to the lengthening of the neck of a giraffe. What do you mean by 'Hot Dilute Soup'? [3+2=5] OR Construct the sequence of major events of organic evolution with the help of a schematic diagram. Give two examples of the problem-solving ability of chimpanzees. [3+2=5]

Write three inferences deduced from the observations as mentioned in Darwin’s theory of origin of new species by natural selection with the help of a table. Explain the problem-solving ability of Chimpanzee regarding procurement of food. [3 + 2]

Show the major events of evolution with the help of a chart. What are the roles of air sacs in the flight of pigeon? [3 + 2]

Establish the relationship between the ability to withstand extreme water loss and the shape of RBC in Camel.

Write an example of a proteolytic enzyme.

Give an example of an ornithophilous (bird-pollinated) flower.

Write one function of collenchyma tissue

What is the function of lysosome?