MEDIUM
12th CBSE
IMPORTANT
Earn 100

Construct an age pyramid which reflects an expanding growth status of human population.

Important Questions on Organisms and Populations

MEDIUM
12th CBSE
IMPORTANT
TRUEMAN'S ELEMENTARY Biology VOL. II For XII Class of 10+2>Chapter 13 - Organisms and Populations>TEST QUESTIONS>Q 15
What is mutualism? Mention any two examples where the organisms involved are commercially exploited in agriculture .
MEDIUM
12th CBSE
IMPORTANT
TRUEMAN'S ELEMENTARY Biology VOL. II For XII Class of 10+2>Chapter 13 - Organisms and Populations>TEST QUESTIONS>Q 17
When you go far on a trek/trip to any high altitude places, you are advised to take it easy and rest for the first two days. Comment giving reasons.
HARD
12th CBSE
IMPORTANT
TRUEMAN'S ELEMENTARY Biology VOL. II For XII Class of 10+2>Chapter 13 - Organisms and Populations>TEST QUESTIONS>Q 20
Plants that inhabit a rainforest are not found in a wetland.
HARD
12th CBSE
IMPORTANT
TRUEMAN'S ELEMENTARY Biology VOL. II For XII Class of 10+2>Chapter 13 - Organisms and Populations>TEST QUESTIONS>Q 3
How do organisms cope with stressful external environmental conditions which are localised or of short duration.
EASY
12th CBSE
IMPORTANT
TRUEMAN'S ELEMENTARY Biology VOL. II For XII Class of 10+2>Chapter 13 - Organisms and Populations>TEST QUESTIONS>Q 4
Name the type of interaction seen in clownfish living among the tentacles of the sea anemone.
EASY
12th CBSE
IMPORTANT
TRUEMAN'S ELEMENTARY Biology VOL. II For XII Class of 10+2>Chapter 13 - Organisms and Populations>TEST QUESTIONS>Q 4
Name the type of interaction seen in mycorrhiza living on the roots of higher plants, whether it is mutualism or commensalism.
EASY
12th CBSE
IMPORTANT
TRUEMAN'S ELEMENTARY Biology VOL. II For XII Class of 10+2>Chapter 13 - Organisms and Populations>TEST QUESTIONS>Q 4
Name the type of interaction seen in the disappearance of smaller barnacles when Balanus dominated on the coast of Scotland.
HARD
12th CBSE
IMPORTANT
TRUEMAN'S ELEMENTARY Biology VOL. II For XII Class of 10+2>Chapter 13 - Organisms and Populations>TEST QUESTIONS>Q 5
List any three ways of measuring the population density of a habitat.