Explore how organisms adapt through changes in structure, function, and behaviour to survive in their environments.
Tertiary consumers do not feed directly on producers; they obtain energy from primary and secondary consumers.
Ref: NCERT Class 12 Biology Chapter 11: Organisms and Populations Adaptations - Morphological Physiological Behavioural
Climate variability, such as droughts or temperature changes, can lead to fluctuations in population size.
Ref: NCERT Class 12 Biology Chapter 11: Organisms and Populations Adaptations - Morphological Physiological Behavioural
Ecosystem resilience refers to the ability of an ecosystem to recover after disturbances and maintain its function.
Ref: NCERT Class 12 Biology Chapter 11: Organisms and Populations Adaptations - Morphological Physiological Behavioural
Decomposers are essential in food webs as they break down dead organisms and recycle nutrients.
Ref: NCERT Class 12 Biology Chapter 11: Organisms and Populations Adaptations - Morphological Physiological Behavioural
Trophic cascades describe the effects of changes in predator populations on lower trophic levels, influencing ecosystem dynamics.
Ref: NCERT Class 12 Biology Chapter 11: Organisms and Populations Adaptations - Morphological Physiological Behavioural
Pyramids of numbers can sometimes be inverted, such as in forests where a few large producers support many herbivores.
Ref: NCERT Class 12 Biology Chapter 11: Organisms and Populations Adaptations - Morphological Physiological Behavioural
Decomposers break down dead organic material and return essential nutrients to the ecosystem.
Ref: NCERT Class 12 Biology Chapter 11: Organisms and Populations Adaptations - Morphological Physiological Behavioural
Population dispersion refers to how individuals are spaced within their habitat, which may be clumped, uniform, or random.
Ref: NCERT Class 12 Biology Chapter 11: Organisms and Populations Adaptations - Morphological Physiological Behavioural
Predators use adaptations like sharp claws and teeth to catch and consume prey efficiently.
Ref: NCERT Class 12 Biology Chapter 11: Organisms and Populations Adaptations - Morphological Physiological Behavioural
Invasive species can significantly impact ecosystem dynamics by disrupting food chains and reducing biodiversity.
Ref: NCERT Class 12 Biology Chapter 11: Organisms and Populations Adaptations - Morphological Physiological Behavioural
Energy transfer is not 100% efficient; only about 10% of energy is passed from one trophic level to the next.
Ref: NCERT Class 12 Biology Chapter 11: Organisms and Populations Adaptations - Morphological Physiological Behavioural
Keystone species are not necessarily the most abundant but play a crucial role in maintaining ecosystem structure.
Ref: NCERT Class 12 Biology Chapter 11: Organisms and Populations Adaptations - Morphological Physiological Behavioural
