Concept explainers
Introduction:
The living organisms that reside in a stable environment produce a smaller number of offspring. Whereas, the living organisms that reside in an environment which is highly unstable produce higher number of offspring. Hence, the two evolutionary strategies include k-strategists and strategists. The k-strategists are the ones that produce smaller number of offspring and live in stable environmental conditions, whereas, the r-strategists produce more offspring and live in highly unstable environmental conditions.
Answer to Problem 3STP
Option (B)
Explanation of Solution
Explanation for correct answer:
Option (B). Grasslands are highly unstable environments. Grasslands experience increasing levels of drought, grazing, nitrogen and carbon dioxide. This negatively affects the biodiversity and gradually reduces the stability of grasslands. Grasslands have too much space where predation could be high, and
Explanation for incorrect answer:
Option (A). Desert is a stable environment in comparison to the grassland. Furthermore, deserts and tropical rain forests are applicable for k-strategist populations. Hence, option is incorrect.
Option (C). Deciduous forests have two specific types of climates, in which most of the k strategists can live, and so they are also stable. Hence, option C is incorrect.
Option (D). Tropical rain forest is a stable environment as compared to the grasslands. Tropical rain forest is applicable for k-strategist populations. Hence, option is incorrect.
Chapter 7 Solutions
Biology Illinois Edition (Glencoe Science)
Additional Science Textbook Solutions
Microbiology with Diseases by Body System (4th Edition)
Concepts of Genetics (12th Edition)
Genetic Analysis: An Integrated Approach (2nd Edition)
Biology: Life on Earth
Campbell Biology: Concepts & Connections (9th 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