PPT-Why different species?

Why are there 4740 species of frogs in the world instead of 1 frog Speciation Making a species through evolution What defines a species Species a group of organisms that can interbreed. Understanding why they are acting as they are will help you in dealing with them and in changing their behavior Of cours e sometimes children seem to have no reason for their misbehavior but most of the time you can discover the cause BASIC NEEDS On Browne M Boudjelas S De Poorter M 2000 100 of the Worlds Worst Invasive Alien Species A selection from the Global Invasive Species Database Published by The Invasive Species Specialist Group ISSG a specialist group of the Species Survival Commission How long can I expect the drive to retain my data without needing to plug the drive back in What is Overprovisioning What is Wear Leveling What is Garbage Collection What is Error Correction Code ECC What is Write Amplification Factor WAF What steps Updated: January 2015. By Jerald D. . H. endrix. Microbial Classification . and Taxonomy. Classification Systems. Levels of Classification. Definition of “Species”. Nomenclature. Useful Properties in Microbial Classification. What is a Species?. Speciation. – the origin of new species. The . biological species concept. defines a species as a population or group of populations whose members have the potential to interbreed with one another in nature to produce viable, fertile offspring, but who cannot produce viable, fertile offspring with members of other species. An introduction. What is a . native species?. Native species are those that normally live and thrive in a particular community. They occupy specific habitats and have specific niches in their native environment. They have natural predators that help to keep their populations in check.. The Dirty Dozen. Plus Friends. Paul Dolan. Small Forest are A Big Deal. Invasive Plants. Japanese . Stiltgrass. Microstegium. . vimineum. Invasive Plants. What is an Invasive? . Invasive species:. Endangered Species . Conservation. Excerpt from: . Conservation of Endangered White-eyes of the Tropical Pacific.. Every endangered species needs a champion, especially if it is a little green one that few have heard of and less have seen. White-eyes are neither sexy nor macho, and all of the usually invoked reasons for preserving endangered species would not seem to apply here (i.e. white-eyes do not cure cancer). The only way that such species are likely to persist is through the action of motivated individuals. . avoiding direct competition.. encouraging mutualistic interactions.. enabling prey to hide from predators.. creating new resources.. allowing abiotic factors, such as climate or nutrient availability, to influence the community.. Homologous structures. Human Arm . Bat Wing . Whale Flipper. . Analogous. Structures . Similar functions but NOT structurally related. . Insects are arthropods and birds are vertebrates. . The wing of a bird and the wing of a butterfly are examples of . Status is ubiquitous in modern life, yet our understanding of its role as a driver of inequality is limited.  In Status, sociologist and social psychologist Cecilia Ridgeway examines how this ancient and universal form of inequality influences today’s ostensibly meritocratic institutions and why it matters. Ridgeway illuminates the complex ways in which status affects human interactions as we work together towards common goals, such as in classroom discussions, family decisions, or workplace deliberations. Ridgeway’s research on status has important implications for our understanding of social inequality. Distinct from power or wealth, status is prized because it provides affirmation from others and affords access to valuable resources. Ridgeway demonstrates how the conferral of status inevitably contributes to differing life outcomes for individuals, with impacts on pay, wealth creation, and health and wellbeing. Status beliefs are widely held views about who is better in society than others in terms of esteem, wealth, or competence. These beliefs confer advantages which can exacerbate social inequality. Ridgeway notes that status advantages based on race, gender, and class—such as the belief that white men are more competent than others—are the most likely to increase inequality by facilitating greater social and economic opportunities. Ridgeway argues that status beliefs greatly enhance higher status groups’ ability to maintain their advantages in resources and access to positions of power and make lower status groups less likely to challenge the status quo. Many lower status people will accept their lower status when given a baseline level of dignity and respect—being seen, for example, as poor but hardworking. She also shows that people remain willfully blind to status beliefs and their effects because recognizing them can lead to emotional discomfort. Acknowledging the insidious role of status in our lives would require many higher-status individuals to accept that they may not have succeeded based on their own merit many lower-status individuals would have to acknowledge that they may have been discriminated against. Ridgeway suggests that inequality need not be an inevitable consequence of our status beliefs. She shows how status beliefs can be subverted—as when we reject the idea that all racial and gender traits are fixed at birth, thus refuting the idea that women and people of color are less competent than their male and white counterparts. This important new book demonstrates the pervasive influence of  status on social inequality and suggests ways to ensure that it has a less detrimental impact on our lives. An example of a Allopolyploid is a liger. It’s a combination of a lion and tiger and is usually sterile (cannot reproduce).. When two polyploidy organisms mate, they create a new hybrid polyploidy organism that differs from either parent. The hybrid is usually sterile because the haploid set of chromosomes from this species cannot pair during meiosis with the haploid set of another species.. sexual dimorphism. .. Male birds often have brightly coloured feathers to make them more attractive to female birds; females have more dull-coloured . feathers.. Male birds’ colourful feathers allow them to demonstrate their ‘fitness’ as a mate to female birds. They are often bigger and also behave differently to female birds. . K. Fukai, T. Nishi, N. Shimada, K. Morioka, M. Yamada, K. Yoshida, R. Kitano, R. . Yamazoe. , M. . Yamakawa. Exotic Disease Research Station, National Institute of Animal Health, National Agriculture and Food Research Organization, Japan.