Charles Darwin
... theory of evolution through natural selection. It is Darwin’s name that is most closely associated with the theory of evolution. A group of closely related organisms that are capable of mating and ...
... theory of evolution through natural selection. It is Darwin’s name that is most closely associated with the theory of evolution. A group of closely related organisms that are capable of mating and ...
The Evolution of Animals
... nutrients by eating and, are able to digest food within their bodies We classify them based on evolutionary innovations that evolved as animals evolved The hypothetical ancestor of all animals was a colonial flagellated protist The oldest animal fossils date to 550-575 million years ago Animals must ...
... nutrients by eating and, are able to digest food within their bodies We classify them based on evolutionary innovations that evolved as animals evolved The hypothetical ancestor of all animals was a colonial flagellated protist The oldest animal fossils date to 550-575 million years ago Animals must ...
Great Barrier Reef
... insights into this period of dramatic evolutionary change and experimentation that laid the foundation for most major modern animal body plans. Also appearing at this time are a wide variety of enigmatic and exotic configurations that appear to be unrelated to any modern animals. Before the explosio ...
... insights into this period of dramatic evolutionary change and experimentation that laid the foundation for most major modern animal body plans. Also appearing at this time are a wide variety of enigmatic and exotic configurations that appear to be unrelated to any modern animals. Before the explosio ...
Cambrian Explosion of Life: the Big Bang in Metazoan Evolution
... largely documents only microscopic life. The mostly simple Precambrian life forms were followed by a sudden explosive radiation of multicellular animals at the turn of the Cambrian period (543-490 Ma) between 530 and 520 Ma ago, when almost two-thirds of the animal phyla make their dramatic appearan ...
... largely documents only microscopic life. The mostly simple Precambrian life forms were followed by a sudden explosive radiation of multicellular animals at the turn of the Cambrian period (543-490 Ma) between 530 and 520 Ma ago, when almost two-thirds of the animal phyla make their dramatic appearan ...
Classifying Organisms Study Guide
... ______________________ have bodies divided into segments, legs with several joints, have an exoskeleton, and are categorized by 6 legs (ants, flies), 8 legs (spiders), 10 legs (crabs, lobsters), and ...
... ______________________ have bodies divided into segments, legs with several joints, have an exoskeleton, and are categorized by 6 legs (ants, flies), 8 legs (spiders), 10 legs (crabs, lobsters), and ...
![214 - S11 - [122] - Evolution](http://s1.studyres.com/store/data/015300014_1-c37aa7c7c4b4a5c31b5575ad110b2f45-300x300.png)
214 - S11 - [122] - Evolution
... (hydrous silica or calcite), and plates of calcium carbonate. 1. Most sponges are marine, but there are a few freshwater forms. 2. Most forms are cylindrical, but there are also encrusting forms. 3. Food consists of bacteria removed from water drawn into the body cavity through pores. 4. Not common ...
... (hydrous silica or calcite), and plates of calcium carbonate. 1. Most sponges are marine, but there are a few freshwater forms. 2. Most forms are cylindrical, but there are also encrusting forms. 3. Food consists of bacteria removed from water drawn into the body cavity through pores. 4. Not common ...
Rainforest- OH standards
... Now covering only a small percent of the Earth’s surface, these are some of the most important habitats on the Planet. Students will learn what rain forests are like and meet some rain forest inhabitants. Ohio Science Standards addressed by this Program, organized by grade band and then standard: GR ...
... Now covering only a small percent of the Earth’s surface, these are some of the most important habitats on the Planet. Students will learn what rain forests are like and meet some rain forest inhabitants. Ohio Science Standards addressed by this Program, organized by grade band and then standard: GR ...
Kingdom Animalia
... The protostomes are extremely diverse. Just within phylum arthropoda, class Inescta, there are over 1.1 million described species! ALL PROTOSTOMES HAVE: ...
... The protostomes are extremely diverse. Just within phylum arthropoda, class Inescta, there are over 1.1 million described species! ALL PROTOSTOMES HAVE: ...
Evidence Supporting Evolution
... Features that are similar in structure but appear in different organisms and have different functions ...
... Features that are similar in structure but appear in different organisms and have different functions ...
Document
... 4. Which of the following is NOT true concerning the small shelly fauna? (a) Trilobites were a major component of this assemblage.. (b) Ediacaran ancestors of mollusks were present in the small shelly fauna. (c) The calcareous tube-builder Cloudina was an important component of the small shelly faun ...
... 4. Which of the following is NOT true concerning the small shelly fauna? (a) Trilobites were a major component of this assemblage.. (b) Ediacaran ancestors of mollusks were present in the small shelly fauna. (c) The calcareous tube-builder Cloudina was an important component of the small shelly faun ...
Biological Themes Biology: the science of living organisms and the
... Structure and Function Morphology: the internal and external appearance of an organism Anatomy = Internal Morphology STRUCTURE DETERMINES FUNCTION Energy Relationships All organisms use energy Autotrophs vs. Heterotrophs Ecology Ecology: the study of the relationship be ...
... Structure and Function Morphology: the internal and external appearance of an organism Anatomy = Internal Morphology STRUCTURE DETERMINES FUNCTION Energy Relationships All organisms use energy Autotrophs vs. Heterotrophs Ecology Ecology: the study of the relationship be ...
introduction to evolution - Fall River Public Schools
... • Fossil evidence shows a long history of life on Earth • Organisms live, last for awhile and disappeared; new forms live, last and disappear ...
... • Fossil evidence shows a long history of life on Earth • Organisms live, last for awhile and disappeared; new forms live, last and disappear ...
Comparing Invertebrates
... Some had photosynthetic algae living within their tissues Segmented Bilateral symmetry Little cell/internal specialization Little organization back to front May have been related to jellyfish and worms but body plan distinct from anything living today ...
... Some had photosynthetic algae living within their tissues Segmented Bilateral symmetry Little cell/internal specialization Little organization back to front May have been related to jellyfish and worms but body plan distinct from anything living today ...
Phylum Mollusca - findyourtao2011
... But, we learned in Ecology, that there are a number of things that can stop reproduction and make life very difficult. These include: Organisms undergo what we are going to call a “BIOLOGICAL ARMS RACE” via evolution/ natural selection to combat the factors above. Reflection: What do you think we me ...
... But, we learned in Ecology, that there are a number of things that can stop reproduction and make life very difficult. These include: Organisms undergo what we are going to call a “BIOLOGICAL ARMS RACE” via evolution/ natural selection to combat the factors above. Reflection: What do you think we me ...
lecture notes ch32 Intro Animal Evolution
... 17) A large question in animal phylogenetics is whether the acoelomate phyla (e.g. flatworms) and the pseudocoelomate phyla (e.g. roundworms) evolved from non-coelomate or coelomate ancestors. For example, it was originally believed that the flatworm’s lack of body cavity was a primitive condition. ...
... 17) A large question in animal phylogenetics is whether the acoelomate phyla (e.g. flatworms) and the pseudocoelomate phyla (e.g. roundworms) evolved from non-coelomate or coelomate ancestors. For example, it was originally believed that the flatworm’s lack of body cavity was a primitive condition. ...
bio 1_13_15 natural selection
... species geographically and historically, and why (or why not) they are found in a geographical area. • Look at page 383 in your text. • What land is shared by two rodent species? • Why do you think rodent species in the Americas are divided into different ranges? or 832 ...
... species geographically and historically, and why (or why not) they are found in a geographical area. • Look at page 383 in your text. • What land is shared by two rodent species? • Why do you think rodent species in the Americas are divided into different ranges? or 832 ...
Biology II – Chapter 1 Study Guide
... 6. __________________________________________ is the process of generating a hypothesis of how an experiment or observation will turn out – usually an “if…then” statement. 7. The portion of the experiment that makes sure all other possible variables are constant is the __________________. 8. The sma ...
... 6. __________________________________________ is the process of generating a hypothesis of how an experiment or observation will turn out – usually an “if…then” statement. 7. The portion of the experiment that makes sure all other possible variables are constant is the __________________. 8. The sma ...
Clues About Evolution - Science327-8
... other organisms develop other structures as their development continues. • Fish, birds, and reptiles keep their tails, but many mammals lose theirs. • These similarities suggest an evolutionary relationship among all vertebrate species. ...
... other organisms develop other structures as their development continues. • Fish, birds, and reptiles keep their tails, but many mammals lose theirs. • These similarities suggest an evolutionary relationship among all vertebrate species. ...
FinalSG2016Fall
... Explain the two types of reproduction in animals. Identify the main function for each of the following organ systems; Respiratory, Digestive, Excretory, Circulatory, Nervous, Reproductive ...
... Explain the two types of reproduction in animals. Identify the main function for each of the following organ systems; Respiratory, Digestive, Excretory, Circulatory, Nervous, Reproductive ...
File
... 1) How do scientist classify organisms? Scientist classify similar organisms in one group, and an organism that is very different from other known organisms is placed in a new. 2) Describe one advantage of having a classification system: A classification system makes it easier to communicate clearly ...
... 1) How do scientist classify organisms? Scientist classify similar organisms in one group, and an organism that is very different from other known organisms is placed in a new. 2) Describe one advantage of having a classification system: A classification system makes it easier to communicate clearly ...
powerpoint note presentation
... • Complex animals concentrate sense organs and nerve cells in the anterior end of the body, this is called cephalization – Ganglia – small clusters of nerve cells (simple animals) – Brain – clusters of ganglia (more complex animals) ...
... • Complex animals concentrate sense organs and nerve cells in the anterior end of the body, this is called cephalization – Ganglia – small clusters of nerve cells (simple animals) – Brain – clusters of ganglia (more complex animals) ...
Cambrian explosion
The Cambrian explosion, or less commonly Cambrian radiation, was the relatively short evolutionary event, beginning around 542 million years ago in the Cambrian Period, during which most major animal phyla appeared, as indicated by the fossil record. Lasting for about the next 20–25 million years, it resulted in the divergence of most modern metazoan phyla. Additionally, the event was accompanied by major diversification of other organisms. Prior to the Cambrian explosion, most organisms were simple, composed of individual cells occasionally organized into colonies. Over the following 70 to 80 million years, the rate of diversification accelerated by an order of magnitude and the diversity of life began to resemble that of today. Many of the present phyla appeared during this period, with the exception of Bryozoa, which made its earliest known appearance in the Lower Ordovician.The Cambrian explosion has generated extensive scientific debate. The seemingly rapid appearance of fossils in the “Primordial Strata” was noted as early as the 1840s, and in 1859 Charles Darwin discussed it as one of the main objections that could be made against the theory of evolution by natural selection. The long-running puzzlement about the appearance of the Cambrian fauna, seemingly abruptly and from nowhere, centers on three key points: whether there really was a mass diversification of complex organisms over a relatively short period of time during the early Cambrian; what might have caused such rapid change; and what it would imply about the origin of animal life. Interpretation is difficult due to a limited supply of evidence, based mainly on an incomplete fossil record and chemical signatures remaining in Cambrian rocks.Phylogenetic analysis has been used to support the view that during the Cambrian radiation, metazoa evolved monophyletically from a single common ancestor: flagellated colonial protists similar to modern choanoflagellates.
