Skip to content

#ecology

983 public questions tagged with this topic.

Which of the following factors contributes most to habitat loss?

Agricultural expansion is a major cause of habitat destruction, leading to biodiversity loss. This follows from latest NCERT 2026-27 principle explaining the concept clearly for NEET students in simple steps as per rationalized syllabus.

Ref: NCERT Biology Textbook - Latest Edition for Academic Session 2026-27 (Botany section, Rationalized Textbook for Class XI and XII), Chapter: Biology - Botany portion (Latest NCERT Textbooks for Academic Session 2026-27 -

Which of the following best explains why energy transfer between trophic levels is inefficient?

Energy transfer is inefficient because most energy is lost as heat due to metabolic activities, limiting the amount transferred to the next level. This follows from latest NCERT 2026-27 principle explaining the concept clearly for NEET students in simple steps as per rationalized syllabus.

Ref: NCERT Biology Textbook - Latest Edition for Academic Session 2026-27 (Botany section, Rationalized Textbook for Class XI and XII), Chapter: Biology - Botany portion (Latest NCERT Textbooks for Academic Session 2026-27 -

Which of the following is NOT an adaptation of prey to avoid predators?

Increased reproduction rate helps populations survive but does not directly protect individual prey from predators. This follows from NCERT principle where relation explains outcome clearly for students.

Ref: NCERT Biology Textbook for Class XI and XII (Botany section), Chapter: Biology - Botany portion covering relevant concept, Topic: Plant structure, physiology and applications.

Which of the following is an incorrect statement about carrying capacity?

Carrying capacity is not fixed; it fluctuates based on environmental factors such as food supply and habitat conditions. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.

Ref: NCERT Biology Textbook for Class XI and XII (Botany section), Chapter: Biology - Botany portion covering relevant concept.

Which of the following is an incorrect statement about climate change and biodiversity?

Climate change significantly impacts biodiversity by altering habitats, increasing extreme weather events, and affecting species interactions. This follows from NCERT principle where relation explains outcome clearly for students.

Ref: NCERT Biology Textbook for Class XI and XII (Botany section), Chapter: Biology - Botany portion covering relevant concept, Topic: Plant structure, physiology and applications.

Which of the following is an example of a grazing food chain?

A grazing food chain starts with living producers like grass or algae and is consumed by herbivores and carnivores. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.

Ref: NCERT Biology Textbook for Class XI and XII (Botany section), Chapter: Plant Kingdom, Topic: Classification and salient features of plant groups.

Which of the following is a correct statement about decomposers?

Decomposers break down dead organic matter and recycle essential nutrients back into the ecosystem. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.

Ref: NCERT Biology Textbook for Class XI and XII (Botany section), Chapter: Morphology and Anatomy of Flowering Plants, Topic: Plant structure and tissue systems.

Which of the following is a correct statement about decomposers?

Decomposers break down dead organic material and return essential nutrients to the ecosystem. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.

Ref: NCERT Biology Textbook for Class XI and XII (Botany section), Chapter: Morphology and Anatomy of Flowering Plants, Topic: Plant structure and tissue systems.

Which of the following is an example of species diversity?

Species diversity refers to the variety of different species within an ecosystem, such as the diverse bird species in the Amazon rainforest. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.

Ref: NCERT Biology Textbook for Class XI and XII (Botany section), Chapter: Morphology and Anatomy of Flowering Plants, Topic: Plant structure and tissue systems.