Biology: Science for Life with Physiology (6th Edition) (Belk, Border & Maier, The Biology: Science for Life Series, 5th Edition)
6th Edition
ISBN: 9780134555430
Author: Colleen Belk, Virginia Borden Maier
Publisher: PEARSON
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Chapter 13, Problem 6LTB
Summary Introduction
Introduction:
When the environment creates an outside barrier to reproduction, such as a mountain range or river, it is known as reproductive isolation. Pre-fertilization reproductive barriers disturb the jasmine crosses. Reproductive barriers are commonly divided into pre and post-fertilization barriers depending on whether fertilization happens normally.
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Natural selection results in the adaptation of organisms to the circumstances of their way of life and their environment
True or False
4. Species is a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding. The presence of different organisms in an area shows diversity of life. What type of diversity when then is a variety of organism inhabiting the area? *
A. Ecosystem
B. Genetic
C. Species
D. Population
If a species looks superficially the same after thousands of years, the most likely explanation is:
Group of answer choices
there is no evolution happening to that population
they have evolved a level of perfection so no changes are necessary
the changes are not easily observed, such as changes in immunity or metabolism
they have not experienced any Gene Flow
13
Chapter 13 Solutions
Biology: Science for Life with Physiology (6th Edition) (Belk, Border & Maier, The Biology: Science for Life Series, 5th Edition)
Ch. 13 - Define biological species.Ch. 13 - Prob. 2LTBCh. 13 - Prob. 3LTBCh. 13 - Prob. 4LTBCh. 13 - Prob. 5LTBCh. 13 - Prob. 6LTBCh. 13 - The biological definition of race corresponds to...Ch. 13 - All of the following statements support the...Ch. 13 - Similarity in skin color among different human...Ch. 13 - Prob. 10LTB
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- Term Definition in your own words Use the term in a sentence as it applies to ecology. Environment Population Scientific Method Evolution Adaptation Natural Selection Chromosomes The Origin of Species Fitness Gene Pool Selectionarrow_forwardList the premises of evolution by natural selection. What is the inevitable outcome?Variation; heritability; “struggle”/context; differential survival/reproductionarrow_forwardNatural selection acts on individual but only population evolve true or falsearrow_forward
- Evolution is a process of___ in a population through___ variation over___ Evolution involves___ and___.arrow_forwardWhich of the following is NOT a component of the Theory of Evolution by Natural Selection? Group of answer choices inheritance of acquired characteristics competition for food and space variation among species survival and reproductionarrow_forwardWhich of the following is NOT a component of the Theory of Evolution by Natural Selection? competition for food and space variation among species inheritance of acquired characteristics survival and reproductionarrow_forward
- Which of the following is not an assumption if the hardt Weinberg theorem?1. no migration occurs 2. organisms reproduce sexually 3. organisms are diploid 4. populations are smallarrow_forwardA severe fire or flood kills 90% of a population of squirrels in a forest. The remaining squirrels evolve into a population quite distinct from the original. In another forest, a bacterial infection kills 90% of the squirrels in the forest, and the remaining squirrels also evolve into a distinct population. The first instance is considered genetic drift, and the second is natural selection. Explain the difference.arrow_forwardWhat does species diversity indicate? the total number of organisms on the planet the number of different ecosystems on the planet the number of different organisms on the planet the number of combinations of different genes that can emerge in offspringarrow_forward
- Explain the meaning of the following statement: “Individuals within a population will not evolve, the population evolves.”arrow_forwardNatural selection occurs when which of the following conditions are met? Individual organisms depend on each other to obtain available resources • Variations between individual organisms lead to differential survival chances Habitat and nutrient resources in an area are plentiful over a long period of time The conditions in an ecosystem support a wide range of living organismsarrow_forwardNatural selection refers to the process where the organisms that are the least fit for an environment survive and reproduce, passing on their DNA to their offspring Group of answer choices True False Filtration is a selective process that ensures certain molecules such as glucose and amino acids are not excreted. Group of answer choices True Falsearrow_forward
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