FreeNotes
Total Marks: 65 | Time: 2 Hours Section A – Multiple Choice Questions (12 Marks) (Attempt all questions) 1. The study of microorganisms is called: a) Botany b) Zoology c) Microbiology d) Ecology 2. The classification system introduced by Carolus Linnaeus is known as: a) Binomial nomenclature b) Phylogenetic classification c) Cladistics d) Kingdom … Read more
Total Marks: 65 | Time: 2 Hours Section A – Multiple Choice Questions (12 Marks) (Attempt all questions) 1. The study of living organisms and their interactions with the environment is called: a) Zoology b) Botany c) Biology d) Microbiology 2. Which group of organisms is classified under Kingdom Fungi? a) Bacteria b) Viruses c) … Read more
Natural selection occurs in nature when organisms with favorable traits survive and reproduce, while artificial selection is controlled by humans to breed organisms with specific characteristics. Natural selection leads to adaptation and evolution, whereas artificial selection focuses on traits useful to humans. Related Questions: Explain the homologous structures in plants. Why was the theory of … Read more
Descent with modification refers to the concept that new species arise from pre-existing species over generations. As organisms reproduce, genetic changes accumulate, leading to variations and adaptations, which eventually result in the emergence of new species. Related Questions: Explain the homologous structures in plants. Why was the theory of evolution attributed to Darwin? Differentiate between … Read more
The theory of evolution is attributed to Charles Darwin because he provided extensive evidence for the process of natural selection, explaining how species change over time. His book On the Origin of Species (1859) introduced the idea that organisms with beneficial traits survive and reproduce, passing those traits to the next generation. Related Questions: Explain … Read more
Homologous structures in plants are organs that have a similar basic structure but different functions. For example, the tendrils of peas and the spines of cacti are modified leaves that perform different roles—tendrils help in climbing, while spines reduce water loss and protect the plant from herbivores. Related Questions: The science of Biology Define the … Read more
Related Questions: The science of Biology Define the following branches of biology and give at least one significance of studying these branches. Can you distinguish between: Healthy life of a person depends on healthy life choices. How does the study of biology help in maintaining a healthy life? What is the contribution of the following … Read more
Related Questions: The science of Biology Define the following branches of biology and give at least one significance of studying these branches. Can you distinguish between: Healthy life of a person depends on healthy life choices. How does the study of biology help in maintaining a healthy life? What is the contribution of the following … Read more
Double fertilization is a unique process in angiosperms where two sperm cells fuse with different cells in the embryo sac. Steps of Double Fertilization: 1. Pollination: Pollen grains land on the stigma and germinate, forming a pollen tube. 2. Pollen Tube Growth: The tube grows through the style and reaches the ovule. 3. Release of … Read more
Artificial vegetative propagation allows farmers to reproduce plants with desirable traits, increase yield, and cultivate plants that may not grow well from seeds. Techniques like grafting and tissue culture improve plant quality and disease resistance. Related Questions: Define cloning. Which process of a plant is supposed to be a cloning? Enlist any two suitable conditions … Read more