Organisms and Populations
Look at a pond, a hill side or a school garden. Every living thing there is shaped by the place it lives in, and by the other living things around it. This chapter starts with one organism and its surroundings, then moves to a whole population and the way it grows, and ends with the ways in which two species affect each other. Python keeps the count of births, deaths and growth curves. It covers the unit of the Indian syllabus (NCERT, NEET) and the matching topics of A-Level, IB and AP Biology.
Part of Biology · High School (11–12) (chapter 29)
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Organisms and Their Environment
Why a camel, a cactus and a seal look so different. The main abiotic factors, the four ways in which an organism meets a hard season, and the adaptations that help it to survive and to breed.
Population Attributes and Population Growth
What a population has that one animal does not. Birth rate, death rate, sex ratio and age pyramids, and the two growth curves, the J shaped curve and the S shaped curve, with r and K. Python counts the changes year by year.