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#biodiversity

206 public questions tagged with this topic.

How many biodiversity hotspots are there in the world?

There are currently 34 biodiversity hotspots identified worldwide. 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 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.

What is the primary reason for the high biodiversity of the Amazon Rainforest?

The Amazon Rainforest has high biodiversity due to its stable climate and high solar energy input, which supports productivity. 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 groups has the highest species diversity?

The Fungi group has more species than the combined total of fishes, amphibians, reptiles, and mammals. 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 hypothesis explains how biodiversity loss weakens ecosystems over time?

The rivet popper hypothesis suggests that biodiversity loss weakens ecosystems, similar to how losing rivets weakens an airplane. 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 NOT a component of biodiversity?

Biodiversity consists of genetic, species, and ecosystem diversity, but not climatic diversity. 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 type of diversity includes genetic variation within a single species?

Genetic diversity refers to variations in the genetic makeup within a species, allowing adaptation to different environmental 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 factor influences the species-area relationship?

According to Alexander von Humboldt, species richness increases with the explored area, but only up to a limit. 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.