Changes Over Time Unit Test DO NOT WRITE ON TEST
... to those on the mainland of South America. The finches looked similar to those on the mainland but they had slight variations in their beaks. 9 What is it called when all of the organisms of a species completely die out? Extinction 10 Animals living in extremely hot environments usually have special ...
... to those on the mainland of South America. The finches looked similar to those on the mainland but they had slight variations in their beaks. 9 What is it called when all of the organisms of a species completely die out? Extinction 10 Animals living in extremely hot environments usually have special ...
Speciation and Extinction
... rate • Bradytelic – lineages changing at slower rates than typical • Tachytelitic – faster rates than typical • Horotelic - typical ...
... rate • Bradytelic – lineages changing at slower rates than typical • Tachytelitic – faster rates than typical • Horotelic - typical ...
Darwin`s Theory of Evolution and Evidence of
... TEKS: 2B, 2C, 3A, 3C, 3F, 6D, 7A, 7B Objectives: Students will 1. Describe the pattern Darwin observed among organisms of the Galapagos Islands. 2. Identify how Lamarck thought species evolve. 3. Describe how natural variation is used in artificial selection. 4. Explain how natural variation is rela ...
... TEKS: 2B, 2C, 3A, 3C, 3F, 6D, 7A, 7B Objectives: Students will 1. Describe the pattern Darwin observed among organisms of the Galapagos Islands. 2. Identify how Lamarck thought species evolve. 3. Describe how natural variation is used in artificial selection. 4. Explain how natural variation is rela ...
Biology Quiz 2 Answers and explanations Note there were two forms
... Q3. If a farmer applied a weed killer continuously for 25 years, two things could happen; 1) the weeds could become resistant, therefore the product would no longer be effective, and 2) genetic diversity of the weeds could decrease after continued selection. This was an analogous example to bacteria ...
... Q3. If a farmer applied a weed killer continuously for 25 years, two things could happen; 1) the weeds could become resistant, therefore the product would no longer be effective, and 2) genetic diversity of the weeds could decrease after continued selection. This was an analogous example to bacteria ...
File
... *Explain how the scientific theory of evolution is supported by fossil record, comparative anatomy, embryology, biogeography, molecular biology (changes in genetic make-up), and observed evolution (observations in nature) -Students will be able to: *Identify situations or conditions contributing to ...
... *Explain how the scientific theory of evolution is supported by fossil record, comparative anatomy, embryology, biogeography, molecular biology (changes in genetic make-up), and observed evolution (observations in nature) -Students will be able to: *Identify situations or conditions contributing to ...
biodiversity - OCPS TeacherPress
... and buildings, clear forests to grow crops, drain marshes to build, divert water for irrigation, flood habitats with dams. Linked to increasing human population – need for food and space. Ex: elephants/Africa Invasive species – compete for food, no natural predators, prey on other species ex: Kudzu, ...
... and buildings, clear forests to grow crops, drain marshes to build, divert water for irrigation, flood habitats with dams. Linked to increasing human population – need for food and space. Ex: elephants/Africa Invasive species – compete for food, no natural predators, prey on other species ex: Kudzu, ...
Document
... Things are even scarier for the cheetah, the world’s fastest land animal. While built for speed on the African plains, cheetahs will have a hard time outrunning new environmental challenges. That’s because they have almost zero genetic variation. Roughly 12,000 years ago, cheetahs went through a sev ...
... Things are even scarier for the cheetah, the world’s fastest land animal. While built for speed on the African plains, cheetahs will have a hard time outrunning new environmental challenges. That’s because they have almost zero genetic variation. Roughly 12,000 years ago, cheetahs went through a sev ...
Evolution homework (Find an article about fossils)
... Scientists found fossils that are thought to be ancestors of T.rex. They are called reptorex and have similar features with T.rex. The interesting thing is that their size is very small, a little bigger than humans. Researchers suspect that they lived 125 million years ago. On the other hand, T. rex ...
... Scientists found fossils that are thought to be ancestors of T.rex. They are called reptorex and have similar features with T.rex. The interesting thing is that their size is very small, a little bigger than humans. Researchers suspect that they lived 125 million years ago. On the other hand, T. rex ...
Chap 10: Evidence of change Qns: 1,2,3,5,6,7,10,11,13,14 Apply
... c) Why are these two animals different in other ways – one a placental and one a marsupial? ...
... c) Why are these two animals different in other ways – one a placental and one a marsupial? ...
15.1 * The Puzzle of Life*s Diversity
... contributions of different mechanisms). Theory—explains current observations. This explanation may serve as a basis for generating new predictions. ...
... contributions of different mechanisms). Theory—explains current observations. This explanation may serve as a basis for generating new predictions. ...
Study Guide
... Research one of the following examples of evolution. 1. Pepper moths in industrial England 2. Kaibab squirrels on the north rim of the Grand Canyon and Abert squirrels on the south rim 3. Deer mice that migrated to the sand hills of Nebraska changed from dark brown to light brown to better hide from ...
... Research one of the following examples of evolution. 1. Pepper moths in industrial England 2. Kaibab squirrels on the north rim of the Grand Canyon and Abert squirrels on the south rim 3. Deer mice that migrated to the sand hills of Nebraska changed from dark brown to light brown to better hide from ...
Evolution
... – Traits vary in a population & most are inherited from parent to offspring – More offspring are produced than the environment can support (Thomas Malthus) ...
... – Traits vary in a population & most are inherited from parent to offspring – More offspring are produced than the environment can support (Thomas Malthus) ...
7th Evolution Population Genetics.key
... a random event • What could these random events be? – Predation – Disaster – Hunting ...
... a random event • What could these random events be? – Predation – Disaster – Hunting ...
Evolution
... population and geographically isolated from it leading to reproductive isolation. Variations occur due to genetic drift and mutations with each population Synpatric – Groups within a population become reproductively isolation from each other. This can be the result of mating behaviors, habitat and f ...
... population and geographically isolated from it leading to reproductive isolation. Variations occur due to genetic drift and mutations with each population Synpatric – Groups within a population become reproductively isolation from each other. This can be the result of mating behaviors, habitat and f ...
Review for Chapter 6 Test - Changes Over time word document
... donkeys belong to the same species? Explain your answer. 22. A scientist collects wild rabbits that live at sea level and moves them to the mountains. One year later, the scientist discovers that the same rabbits have larger lungs, which help them breathe the thin mountain air. The scientist returns ...
... donkeys belong to the same species? Explain your answer. 22. A scientist collects wild rabbits that live at sea level and moves them to the mountains. One year later, the scientist discovers that the same rabbits have larger lungs, which help them breathe the thin mountain air. The scientist returns ...
1. a. In allopatric speciation, a physical barrier splits a single
... 1. a. In allopatric speciation, a physical barrier splits a single ancestral population into two or more populations that are no longer able to exchange genes. Because gene flow between the populations is prevented, each population acts as an independent evolutionary lineage. Different mutations wil ...
... 1. a. In allopatric speciation, a physical barrier splits a single ancestral population into two or more populations that are no longer able to exchange genes. Because gene flow between the populations is prevented, each population acts as an independent evolutionary lineage. Different mutations wil ...
f26 Phyletic gradualism - e
... digital and potentially subject to human control.”10 After Watson and Crick, geneticists realized that an analogue mechanism is not how genetic information is passed on from one generation to the next. In River Out of Eden (1995), Richard Dawkins (Figure f26.2) emphasizes that the genetic code is di ...
... digital and potentially subject to human control.”10 After Watson and Crick, geneticists realized that an analogue mechanism is not how genetic information is passed on from one generation to the next. In River Out of Eden (1995), Richard Dawkins (Figure f26.2) emphasizes that the genetic code is di ...
VOCAB- Evolution
... ADAPTIVE RADIATION (DIVERGENT EVOLUTION) – process by which a single species or small group of species evolves into several different forms that live in different ways; rapid growth in the diversity of a group of organisms. COEVOLUTION- process by which two species evolve in response to changes in e ...
... ADAPTIVE RADIATION (DIVERGENT EVOLUTION) – process by which a single species or small group of species evolves into several different forms that live in different ways; rapid growth in the diversity of a group of organisms. COEVOLUTION- process by which two species evolve in response to changes in e ...
Koinophilia
Koinophilia is an evolutionary hypothesis concerning sexual selection which proposes that animals seeking mate preferentially choose individuals with a minimum of unusual features. Koinophilia intends to explain the clustering of organisms into species and other issues described by Darwin's Dilemma. The term derives from the Greek, koinos, ""the usual"", and philos, ""fondness"".Natural selection causes beneficial inherited features to become more common and eventually replace their disadvantageous counterparts. A sexually-reproducing animal would be expected to avoid individuals with unusual features, and to prefer to mate with individuals displaying a predominance of common or average features. This means that mates displaying mutant features are also avoided. This is advantageous because most mutations that manifest themselves as changes in appearance, functionality or behavior, are disadvantageous. Because it is impossible to judge whether a new mutation is beneficial or not, koinophilic animals avoid them all, at the cost of avoiding the occasional beneficial mutation. Thus, koinophilia, although not infallible in its ability to distinguish fit from unfit mates, is a good strategy when choosing a mate. A koinophilic choice ensures that offspring are likely to inherit features that have been successful in the past.Koinophilia differs from assortative mating, where ""like prefers like"". If like preferred like, leucistic animals (such as white peacocks) would be sexually attracted to one another, and a leucistic subspecies would come into being. Koinophilia predicts that this is unlikely because leucistic animals are attracted to the average in the same way as other animals. Since non-leucistic animals are not attracted by leucism, few leucistic individuals find mates, and leucistic lineages will rarely form.Koinophilia provides simple explanations for the rarity of speciation (in particular Darwin's Dilemma), evolutionary stasis, punctuated equilibria, and the evolution of cooperation. Koinophilia might also contribute to the maintenance of sexual reproduction, preventing its reversion to the much simpler and inherently more advantageous asexual form of reproduction.The koinophilia hypothesis is supported by research into the physical attractiveness of human faces by Judith Langlois and her co-workers. They found that the average of two human faces was more attractive than either of the faces from which that average was derived. The more faces (of the same gender and age) that were used in the averaging process the more attractive and appealing the average face became. This work into averageness supports koinophilia as an explanation of what constitutes a beautiful face, and how the individuality of a face is recognized.