Give an example for:
An organism of benthic zone.

Give an example for: (a) An endothermic animal (b) An ectothermic animal (c) An organism of benthic zone .

Give an example of an organism that enters 'diapause' and why.

Give two examples of organisms which reproduce by fragmentation

What is the difference between the food habits of organisms belonging to the first and the third trophic levels ? Give one example each of the organisms belonging to these two trophic levels.

Name the process of anaerobic respiration where CO_(2) is released and give one example of organism which shows this type of respiration

(a) Give an example of zone refining of metals. (b) What is the role of cryolite in the metallurgy of aluminium?

Give one example for each of the following I. Eurythermal plant species…….. II. A hot water spring organism………… III. An organism seen in deep ocean trenches………. IV. An organism seen in compost pit………… V. A parasitic angiosperm............. VI. A stenothermal plant species............... VII. Soil organism............ VIII. A benthic animal.......... IX. Antifreeze compound seen in antarctic fish.............