CAMPBELL BIOLOGY-W/MOD.MASTERBIOLOGY
11th Edition
ISBN: 9780134683461
Author: Urry
Publisher: PEARSON
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Chapter 25, Problem 8TYU
EVOLUTION CONNECTION Describe how gene flow, genetic drift, and natural sclection all can influence macroevolution.
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Students have asked these similar questions
Evolution in Humans
1) explain what evolutionary mechanisms are involved in creating variation in populations
2) define homology and analogy and discuss examples of each
Describe the evolutionary mechanisms (natural selection, artificial selection,
sexual selection, genetic variation, genetic drift, biotechnology), and explain how
they affect the evolutionary development and extinction of various species (i.e.
Darwin's finches, giraffes, pandas)
Topic: Galapagos Finches
Darwin’s readings took him to a predictive theory of how species might change with time: what later thinkers have called microevolution.
Darwin’s philosophical worldview then took him beyond his evidence to a conviction that environmental constraints could create whole new structures and organisms.
Soon Darwin’s theory of macroevolution replaced the Creator with an environment that could create solely by constraint.
For your thread:
According to Chapter 13 section 13.1, define microevolution and macroevolution.
The Galapagos islands have a great diversity of landscapes – from lush vegetation to nearly barren lava fields yet the Galapagos Finches survive on each island. How can this be explained?
Using the varying bills of the Galapagos Finches in figure 13.3 and additional research, explain how microevolution is evidenced.
Chapter 25 Solutions
CAMPBELL BIOLOGY-W/MOD.MASTERBIOLOGY
Ch. 25.1 - What hypothesis did Miller test in his classic...Ch. 25.1 - How would the appearance of protocells have...Ch. 25.1 - MAKE CONNECTIONS In changing from an "RNA world"...Ch. 25.2 - Describe an example from the fossil record that...Ch. 25.2 - WHAT IF? Your measurements indicate that a...Ch. 25.3 - The first appearance of free oxygen in the...Ch. 25.3 - What evidence supports the hypothesis that...Ch. 25.3 - WHAT IF? What would a fossil record of life today...Ch. 25.4 - Explain the consequences of plate tectonics for...Ch. 25.4 - What factors promote adaptive radiations?
Ch. 25.4 - Prob. 3CCCh. 25.5 - Explain how new body forms can originate by...Ch. 25.5 - Why is it likely that Hox genes have played a...Ch. 25.5 - MAKE CONNECTIONS Given that changes in morphology...Ch. 25.6 - How can the Darwinian concept of descent with...Ch. 25.6 - Prob. 2CCCh. 25 - Describe the roles that montmorillonite clay and...Ch. 25 - What are the challenges of estimating the ages of...Ch. 25 - What is the "Cambrian explosion," and why is it...Ch. 25 - Explain how the broad evolutionary changes seen in...Ch. 25 - How could changes in a Single gene or DNA region...Ch. 25 - Explain the reasoning behind the Statement...Ch. 25 - Level 1: Knowledge/Comprehension 1. Fossilized...Ch. 25 - The oxygen revolution changed Earth's environment...Ch. 25 - Prob. 3TYUCh. 25 - Prob. 4TYUCh. 25 - Which of the following steps has not yet been...Ch. 25 - Prob. 6TYUCh. 25 - Prob. 7TYUCh. 25 - EVOLUTION CONNECTION Describe how gene flow,...Ch. 25 - Prob. 9TYUCh. 25 - WRITE ABOUT A THEME: ORGANIZATION You have seen...Ch. 25 - Prob. 11TYU
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- EVOLUTION CONNECTION Explain the biological basis forassigning all human populations to a single species. Can youthink of a scenario by which a second human species couldoriginate in the future?arrow_forwardIn the model shown below, discuss what kind of geographic barriers would have led to the finch speciation in the Galapagarrow_forwardThe four main forces of evolution are mutation, genetic drift, gene flow, and natural selection. Which one of the four forces of evolution will NOT be operating on groups undergoing macroevolution?arrow_forward
- Describe and give example of Mechanical on Adaptation and Speciationarrow_forwardWhat is the difference between micro- and macroevolution? a. Microevolution describes the evolution of small organisms, such as insects, while macroevolution describes the evolution of large organisms, like people and elephants. b. Microevolution describes the evolution of microscopic entities, such as molecules and proteins, while macroevolution describes the evolution of whole organisms. c. Microevolution describes the evolution of populations, while macroevolution describes the emergence of new species over long periods of time. d. Microevolution describes the evolution of organisms over their lifetimes, while macroevolution describes the evolution of organisms over multiple generations.arrow_forwardw4 applyarrow_forward
- write summary on describing a scenario that illustrates one of the three types of natural selection. must include the following: a description of the chosen type of selection, an organism and population,three different variations of a specific trait, and how the population shifted from one version of the trait to another and why.arrow_forward1) Choose 2 of the four evolutionary forces and explain it in your own words with an example. 2) Explain punctuated equilibrium in your own words and give an example.arrow_forwardTopic: NATURAL SELECTION ACTIVITY Simulate a case of natural selection in a predator-prey situation. STEP 1 Gather your materials. You should have: . 1 fork, 1 knife, 1 spoon, and a length of tape (each will be used toestablish the distinct predator "feeding apparatuses")· 4 cups (each will serve as a distinct predator's "mouth")· 3 types of prey (such as popcorn, macaroni, and kidney beans)· 1 clearly delineated habitat (such as a table, a box, or a roped-off areaof ground). 1 timer that allows for counting by seconds (such as a watch or cellphone) STEP 2 Set up the predators. There is variation in predatory feeding apparatuses in this population. You will choose one of the available predator feeding apparatuses: fork, spoon, knife, or four fingers (with your thumb taped to your hand so that you cannot use it). You will also take a cup, which will represent the predator's mouth. Your goal will be to use your feeding apparatus to collect food and put it inyour mouth. STEP 3 Set up the…arrow_forward
- Describe the four basic causes of evolution: natural selection, mutation, genetic drift, and gene flowarrow_forwardArt Connections Directions: With the knowledge you gained about the mechanism of evolution, answer the following questions using illustrations/drawing. Write your answers on a separate sheet of paper. 1. Give an example of natural selection that happens in your locality. 2. Where do you think genetic drift will likely happen more quickly on an island or the mainland? 3. How do pollinators contribute to the gene flow?arrow_forward. A population of red deer were trapped on an island off of England during the last interglacial period. Within 6,000 years, the population evolved from a mean weight of 200 kg toa mean weight of 36 kg. The generation time of red deer is 5 years and the narrow senseheritability of body weight is 0.5. What is the rate of evolutionary change (in Darwins)?arrow_forward
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