Life Processes is one of the most important biology chapters in NCERT Class X Science, explaining how living organisms stay alive. Because the chapter is long, the practice tests are divided topic by topic: nutrition in animals, photosynthesis, respiration, the circulatory system, transportation in plants and the excretory system. Choose a topic, take a short timed MCQ test and get your score instantly, along with an answer review for every question. Working through each part separately makes this chapter much easier to revise thoroughly before class tests and the CBSE board exam.