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Academic session 2026-27, Chapter 11 in the current curriculum.
Welcome to the NCERT Solutions for Class 12 Biology - Chapter Organisms and Population. This page offers a step-by-step solution to the specific question from Exercise 0, Question 12:
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 _______________
x. An organism which can conform _______________
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 _______________
x. An organism which can conform _______________
i. Mango etc.
Shelford’s law of tolerance defines that there are upper and lower limit of tolerance threshold values on the environment gradient beyond the species cannot survive. As the upper limit of tolerance of temperature factor is known is eurythermal organisms.
ii. Thermus aquaticus, bacteria etc.
Hot springs are also known as thermal spring which contains water with the higher temperature.
iii. Xenophyophores, amphipods etc.
Trench is an excavation which is very deeper and narrow when compared along with its length.
iv. Mites, snails, bugs, beetles etc.
Compost pit is defined as the degrading the biodegradable substances in a dig or a pit for the decay so that manure and fertile substances are produced for the soil.
v. Some Cuscuta species.
Parasitic plants are those which gets nutrition from the other plants. Those plants which gets nutrition are parasites and other by which plant they are getting nutrition are known as hosts.
vi. Eucalyptus etc.
Shelford’s law of tolerance defines that there are upper and lower limit of tolerance threshold values on the environment gradient beyond the species cannot survive. As the lower limit of tolerance of temperature factor is known as stenothermal organisms or species.
vii. Mites, worms, beetles, bugs etc.
Soil organisms are those which are found in soil.
viii. Bacteria, fungi, crustaceans etc.
Benthic organisms are those which are found in this benthic zone or bottom zone.
ix. There are some proteins that acts as antifreeze compounds like Antarctic Notothenioids.
Antifreeze compounds are those substances that lowers the freezing point which protects from getting ill from the effects of ice such as ethylene glycol etc.
x. Amphibians, reptiles etc.
Those organisms whose homeostasis is highly influenced by external environment factors like temperature, nutrients etc.
NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:
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Welcome to the NCERT Solutions for Class 12 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 0 , Question 12: Give one example for each of the following: i. Eurythermal plant species _______________ ii. A hot....
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