NCERT Class 11 Biology Chapter 1 Notes: Diversity in the Living World
Diversity in the Living World refers to the vast variety of life forms on Earth, including plants, animals, and microorganisms. It encompasses the differences in […]
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NEET 2025 Model Questions-1 (Photosynthesis: Photosystems)
NEET 2025 Preparation (Model Questions) The NEET 2025 Model Question Paper is designed to align with the updated syllabus, covering Physics, Chemistry, and Biology from […]
NEET 2025 Biology Model Questions with Answers
A photosystem is a protein-pigment complex found in the thylakoid membranes of plants, algae, and cyanobacteria, essential for photosynthesis. It captures light energy and converts […]
Calvin Cycle MCQs with Answers
The Calvin Cycle, also known as the Calvin-Benson cycle, is a series of biochemical reactions that occur in the stroma of chloroplasts during photosynthesis. It […]
MCQ on Molecular Clock with Answers
A molecular clock is a method used in evolutionary biology to estimate the timing of evolutionary events. It assumes that genetic mutations accumulate at a […]
MCQ on Allopatric and Sympatric Speciation with Answers
Allopatric Speciation and Sympatric Speciation are two major modes of speciation, the process by which new species arise. These two types differ in terms of […]
MCQ on Homology and Analogy with Answers
Homology and analogy are key concepts in evolutionary biology that describe the relationship between structures in different organisms. Both terms refer to similarities, but the […]
Parallelism MCQs with Answers
Parallelism in biology refers to the independent evolution of similar traits or features in different lineages or species in response to similar environmental pressures, without […]
MCQ on Evolution of Eukaryotic Cells with Answers
Eukaryotic cells evolved from prokaryotic ancestors through endosymbiosis, a process where one cell engulfed another, leading to a mutualistic relationship. This theory suggests that mitochondria […]