col1,col2 What is biology?,Biology is the study of living organisms and their interactions with the environment. What are the main branches of biology?,"The main branches of biology are botany, zoology, microbiology, genetics, and ecology." What is a cell?,"A cell is the basic unit of life, and it is the smallest structural and functional unit of an organism." What are the two main types of cells?,The two main types of cells are prokaryotic cells and eukaryotic cells. What is the difference between prokaryotic and eukaryotic cells?,"Prokaryotic cells do not have a nucleus or membrane-bound organelles, while eukaryotic cells have a nucleus and membrane-bound organelles." What is DNA?,"DNA, or deoxyribonucleic acid, is a molecule that carries the genetic instructions for the development, functioning, growth, and reproduction of all known organisms." What is a gene?,A gene is a segment of DNA that contains the instructions for making a specific protein or RNA molecule. What is evolution?,"Evolution is the process of change in all forms of life over generations, resulting in the diversity of organisms on Earth." What is natural selection?,"Natural selection is the process by which certain traits become more or less common in a population over time, based on their impact on survival and reproduction." What is photosynthesis?,Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll. What is respiration?,"Respiration is the process by which organisms exchange gases with their environment, usually taking in oxygen and releasing carbon dioxide." What is the difference between aerobic and anaerobic respiration?,"Aerobic respiration requires oxygen and produces more energy, while anaerobic respiration does not require oxygen and produces less energy." What is a food chain?,"A food chain is a linear sequence of organisms, where each organism is eaten by the next organism in the chain." What is a food web?,"A food web is a complex network of interconnected food chains, showing the feeding relationships between different organisms in an ecosystem." What is biodiversity?,"Biodiversity refers to the variety of life forms, including species diversity, genetic diversity, and ecosystem diversity, in a given area." What is an ecosystem?,"An ecosystem is a community of living organisms and their physical environment, interacting as a system."