More free lessons at: http://www.khanacademy.org/video?v=SyFpQbnkg_c ... https://www.youtube.com/watch?v=SyFpQbnkg_c Note: All Khan Academy content is available for free at (www.khanacademy.org)

How do organisms use different life history strategies to maximize fitness? Learn about different ways that different species allocate energy and other resources between growth, maintenance/survival, and reproduction. Watch the next lesson: https://www.khanacademy.org/science/biology/ecology/population-growth-and-regulation/v/exponential-and-logistic-growth-in-populations Missed the previous lesson? Watch here: https://www.khanacademy.org/science/biology/ecology/intro-to-ecology/v/ecology-introduction Ecology on Khan Academy: Why are polar bears found only in the Arctic? Why does mildew grow in your shower and not (hopefully) in your sock drawer? Learn how ecologists study the interactions between organisms and their environment, and how these interactions affect where, and in what numbers, different types of organisms are found. About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. ... https://www.youtube.com/watch?v=mAdUjImDx58 Note: All Khan Academy content is available for free at (www.khanacademy.org)

CAHSEE Practice: Problems 15-16. Created by Sal Khan. Watch the next lesson: https://www.khanacademy.org/test-prep/cahsee-subject/cahsee/v/cahsee-practice-problems-17-19?utm_source=YT&utm_medium=Desc&utm_campaign=CAHSEE Missed the previous lesson? https://www.khanacademy.org/test-prep/cahsee-subject/cahsee/v/cahsee-practice-problems-13-14?utm_source=YT&utm_medium=Desc&utm_campaign=CAHSEE CAHSEE on Khan Academy: Sal working through the 53 problems from the practice test available at http://www.cde.ca.gov/ta/tg/hs/documents/mathpractest.pdf for the CAHSEE (California High School Exit Examination). Clearly useful if you're looking to take that exam. Probably still useful if you want to make sure you have a solid understanding of basic high school math. About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. ... https://www.youtube.com/watch?v=MwdwuDy0rRs Note: All Khan Academy content is available for free at (www.khanacademy.org)

u18_l1_t1_we2 Exponential Application ... https://www.youtube.com/watch?v=Ofnvrti6gh4 Note: All Khan Academy content is available for free at (www.khanacademy.org)