Concept explainers
To write:
How reproductive strategies differ.
Introduction:
The study of human
Explanation of Solution
Species of organisms vary in the number of births per reproduction cycle, in the age that reproduction begins, and in their lifespan. Both plants and animals are placed into groups called r-strategists. The rate strategist or r-strategists is an adaptation for living in an environment where biotic or abiotic fluctuations occur. These fluctuating factors might be availability of food or temperature changes. An r-strategist is generally a small organism such as a fruit fly, a mouse, or a locust. They generally have a short lifespan and produce many offspring. An r-strategist's reproductive strategy is to produce as many offspring as possible in a short span of time. Usually they invest little to no energy in raising their young and are regulated by independent density factors. They usually do not maintain a population near the carrying capacity. The k-strategist or carrying capacity strategy, is an adaptation for living in a more stable environment. A k-strategist is usually a larger organism that has a longer lifespan, produces fewer offspring and whose population reaches equilibrium at the carrying capacity. The reproductive strategy of a k-strategist is to produce only a few offspring who have a better chance of surviving to reproductive age due to the energy, time and resources spent in caring for the young. K-strategist populations are regulated by density-dependent factors.
An r-strategist's reproductive strategy is to produce as many offspring as possible in a short span of time. The reproductive strategy of a k-strategist is to produce only a few offspring who have a better chance of surviving to reproductive age.
Chapter 6 Solutions
Biology Illinois Edition (Glencoe Science)
Additional Science Textbook Solutions
Anatomy & Physiology (6th Edition)
Becker's World of the Cell (9th Edition)
Campbell Essential Biology (6th Edition) - standalone book
Biology: Life on Earth
Campbell Essential Biology with Physiology (5th Edition)
Campbell Essential Biology (7th Edition)
- Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSONBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxAnatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
- Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & CompanyLaboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education