Living systems store, retrieve, transmit and respond to information essential to life processes. A learning objective merges required content with one or more of the seven science practices. The AP ® Learning Objectives listed in the Curriculum Framework provide a transparent foundation for the AP ® Biology course, an inquiry-based laboratory experience, instructional activities, and AP ® exam questions. Information presented and the examples highlighted in the section support concepts outlined in Big Idea 3 of the AP ® Biology Curriculum Framework. Although sexual reproduction allows for greater genetic variation in offspring, organisms that reproduce sexually must maintain males and females in the population, which can limit the ability to colonize new habitats. On the other hand, the rapid rates of asexual reproduction may allow a speedy response to changing environmental conditions. Organisms that reproduce asexually-for example, bacteria and some eukaryotes-may be at a disadvantage in an unstable or unpredictable environment because, barring mutation, the identical offspring may not have sufficient genetic variation to survive in new or different conditions. Whether or not the material in this chapter is required or illustrative as part of your AP ® course, you should find the concepts interesting and relevant to your lives outside the classroom.īoth asexual and sexual reproductive strategies have their advantages and disadvantages. We also previously explored how meiosis followed by sexual reproduction produces offspring that are genetically different from their parents. In a previous chapter we learned that asexual reproduction via mitosis produces genetically identical organisms (clones). Reproduction is necessary for the survival of a species, and animals have evolved various reproductive strategies. You likely studied human reproduction in a health course or previous biology course. Much of the information about the different reproductive systems of animals is not within the scope for AP ®.
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