Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780321962751
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Textbook Question
Chapter 1, Problem 12TYU
SYNTHESI7F YOUR KNOWLEDGE
Can you pick out the mossy leaf-tailed gecko lying against the tree trunk in this photo? How is the appearance of the gecko a benefit in terms of survival? Given what you learned about evolution natural selection and genetic information in this chapter describe how the gecko’s coloration might have evolved.
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Darwin is best known for his Theory of Inheritance of Acquired Characteristics, first presented in 1801 (Darwin's first book dealing with natural selection was published in 1859):Based on these observations and inferences, Darwin concluded that these traits, called adaptations were the product of evolution by Acquired Traits, these traits made the members of the population who had them equally fit for survival. an organism could also change during their lifetime in order to adapt to its environment, those changes are passed on to its offspring. For example, darwin believed that if giraffes stretched their necks to reach food, Their offspring and later generations would inherit the resulting long necks.
Which method provides the most accurate evidence for scientists to use when
determining evolutionary relationships between two species of animals?
identifying fossil patterns in rock strata where the animals live
looking for similarities in the coloration and eating habits of the animals
looking for similar vestigial structures in both species of animals
comparing genetic sequences in the animals using samples of DNA
0000.
Hi! I am interested in getting some help with this question.
This spectacular animal is a Lesser Bird of Paradise, Paradisea minor, from the highlands of Papua New Guinea.
In the context of various evolutionary phenomena we have discussed this semester, why do you suppose:
(a) This bird is confined to New Guinea and two nearby islands? Why would you not expect to find it in the mountains of Borneo?
(b) This spectacular tail presumably attracts predators; why hasn’t natural selection acted to reduce it or camouflage it?
Chapter 1 Solutions
Campbell Biology in Focus (2nd Edition)
Ch. 1.1 - Starting with the molecular level in Figure 1.3,...Ch. 1.1 - Identify me theme or themes exemplified by (a) the...Ch. 1.1 - WHAT IF? For each theme discussed in this section...Ch. 1.2 - How is a mailing address analogous to biologys...Ch. 1.2 - Explain why editing is an appropriate metaphor for...Ch. 1.2 - DRAW IT Recent evidence indicates that fungi and...Ch. 1.3 - Contrast inductive reasoning with deductive...Ch. 1.3 - What qualitative observation led to the...Ch. 1.3 - Why is natural selection called a theory?Ch. 1.3 - How does science differ from technology?
Ch. 1 - All the organisms on your campus make up A. an...Ch. 1 - Which of the following best demonstrates the unity...Ch. 1 - Prob. 3TYUCh. 1 - Prob. 4TYUCh. 1 - Prob. 5TYUCh. 1 - DRAW IT With rough sketches, draw a biological...Ch. 1 - SCIENTIFIC INQUIRY Based on the results of the...Ch. 1 - Prob. 9TYUCh. 1 - FOCUS ON EVOLUTION In a short essay (100-150),...Ch. 1 - FOCUS ON INFORMATION A typical prokaryotic cell...Ch. 1 - SYNTHESI7F YOUR KNOWLEDGE Can you pick out the...
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- Discuss how the results of this simulation are an example of evolution? Simulation: For this lab, the dominant allele for normal fur pigmentation (gray) is represented by G and the recessive allele for leucistic pigmentation is represented by g. Squirrels that inherit two G alleles (homozygous dominant) or one G and one g allele (heterozygous) have normal pigmentation, while squirrels that inherit two gs (homozygous recessive) have leucistic pigmentation. Due to the difficulty of leucisitc squirrels to camouflage themselves against predators, in each generation, 50% of the gg individuals will die off from predation before they can reach maturity. This means they will not be able to pass their genes on to the next generation.arrow_forwardSelect one of the four forces of evoultion. Provide a basic defintion of your selected force and review one exmaple. Finally, explain how this force drives evolution and causes evolutionary change over time.arrow_forwardSpecies Embryo (A-F) Describe the Anatomical Changes from Early to Late Stages Human Chicken Rabbit Tortoise Salamander В Fish A Guide Questions: 1. Look again at the six embryos in their earliest stages. Describe the patterns you see. What physical similarities exist between each of the embryos? 2. Does this suggest an evolutionary relationship? Explain how these embryos can be used as evidence of a common ancestor between each of these six organisms.arrow_forward
- Respond to the following paragraph below? I've been thinking a lot about the theories of why humans evolved to become bipedal, and have been watching a lot of specials on YouTube. One of the things that interests me, is one of the ancient human ancestors evolved to be a mixed form of bipedal and not. I find that extremely interesting, because at the time that this being lived Africa was still largely covered in dense jungle/forest and the being still has to climb trees. It was the perfect inbetween of humans and apes or chimps. There was still some m grabbing capability in its feet to allow it to imb trees, but was also able to straighten and reach for higher places. In the video the theory is that these primitive apes needed to reach higher food that others weren't able to, and also had to carry the food for longer distances. One thing that continues from this was the African landscape starting to shift from jungle to savana. With walking upright, they took less heat from the sun,…arrow_forwardConsider the figure attached. A student in a course on intelligent design theory claims that the graph in part (a) shows that losing the ability to respire actually is adaptive for yeast cells living in small populations. Please read the incomplete sentence that appears immediately below, assess as possible completions the lowercase-Roman-numeral-labelled statements that follow, and click each uppercase-letter-labelled response that is presented below and completes accurately the sentence. An astute student in an evolution course would respond that i. the graph in part (a) shows that selection among mitochondria within yeast cells can lead to fixation for traits that decrease mean fitness for that yeast population. ii. the student in the course on intelligent design is wrong; the yeast cells in the small population group retained completely the ability to respire, as they otherwise would have been unable to harvest energy. iii. a property (e.g., inability to respire) that is…arrow_forwardhat I Can Do The evolution of man is one of the most fascinating discussion and discovery in the field of science. Humans as the race that have dominated the Earth and seem to be at the center of it have evolved greatly. Observe the illustration on the left. The common ancestor of the primates like chimpanzees and humans might look like a primitive primate with four limbs on which the forelimbs are used to hang on trees. After some time, the emergence of humans has marked a great change on the history of life on Earth. In your point of view as a senior high school STEM student, are humans still evolving? Provide evidences for your answer.arrow_forward
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