56 public questions tagged with this topic.
Lantana camara is an invasive species that disrupts native biodiversity by outcompeting indigenous plants. 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.
Invasive species often outcompete native species, leading to declines in biodiversity and disruption of ecosystem functions. 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.
Invasive species can outcompete native species, alter habitats, and disrupt ecosystem functions. 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 -
Invasive species often harm native biodiversity by competing for resources, altering habitats, and disrupting ecological interactions. 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: Organism and Population, Ecosystem and Biodiversity, Topic: Ecological interactions and conservation.
Lantana camara native to Central and South America introduced into India in 1809 as ornamental shrub for its multicolored corymbs and year-round flowering. Eichhornia similarly introduced as aquatic ornamental. Both escaped cultivation demonstrating characteristics listed by Baker as ideal weeds: rapid asexual proliferation via suckers and stolons, high seed output exceeding 10,000 per plant, dormancy, tolerance to drought and waterlogging, and production of allelopathic secondary metabolites lantadenes and phenolics inhibiting germination of neighboring crops. Dense thickets reduce pasture carrying capacity, harbor disease vectors and increase fire hazard. Biological control attempts using Octotoma championi leaf miner for Lantana and Neochetina weevils for water hyacinth illustrate management challenges, highlighting lesson for careful risk assessment during ornamental introduction. This understanding supports competitive exam preparation for NEET, GATE and CSIR NET concepts linking genotype with phenotype through molecular pathways involving transcription factors, hormones and metabolic enzymes that regulate development, adaptation and reproductive biology in applied breeding programs.
Ref: FAO Invasive Weed Management Lantana; CABI Datasheet Eichhornia and Lantana; BSI Invasive alien plants India.
Alien invasive species may outcompete native species, alter habitats, and contribute to biodiversity loss.
Ref: NCERT Class 12 Biology Chapter 13: Biodiversity and Conservation Loss of Biodiversity - Alien Invasion Co-extinction Mass Extinction - Evil Quartet
Alien species invasions are one of the major causes of biodiversity loss. They often reduce biodiversity by displacing native species.
Ref: NCERT Class 12 Biology Chapter 13: Biodiversity and Conservation Loss of Biodiversity - Alien Invasion Co-extinction Mass Extinction - Evil Quartet
Parthenium (Carrot grass) is an invasive species that spreads rapidly and disrupts native ecosystems.
Ref: NCERT Class 12 Biology Chapter 11: Organisms and Populations Population Interactions - Parasitism and Commensalism
Invasive species can significantly disrupt ecosystems by altering food webs, reducing biodiversity, and competing with native species.
Ref: NCERT Class 12 Biology Chapter 11: Organisms and Populations Population Interactions - Predation and Herbivory
Invasive species often thrive because they lack natural predators, allowing them to spread rapidly and outcompete native species.
Ref: NCERT Class 12 Biology Chapter 11: Organisms and Populations Population Interactions - Predation and Herbivory
Invasive species often disrupt ecosystem stability by altering food webs, reducing biodiversity, and outcompeting native species.
Ref: NCERT Class 12 Biology Chapter 11: Organisms and Populations Population Interactions - Predation and Herbivory
Invasive species often outcompete native species, reducing biodiversity and altering ecosystem dynamics.
Ref: NCERT Class 12 Biology Chapter 11: Organisms and Populations Life History Variations and Population Interactions - Overview
