PPT-Higher Biology Unit 3 3.7- Mass Extinctions and Biodiversity

Extinction When an organism is classed as extinct there are no living members of that species left Extinction is a natural process where organisms that are less suited to an environment die out Throughout the history of earth there have been several mass extinction events . Marine and coastal habitats include coral reefs mangrove forests sea grass beds estuaries hydrothermal vents seamounts and soft sediments on the ocean 64258oor deep below the surface More than just a valuable source of food the ocean is one of the l The struggle for life on earth. Mass Extinction - Definition. A significant proportion of species become extinct (between 30% and 95%) . The extinctions operate across a wide range of environments and . Overview. Extinctions are as important in the history of life as are the evolution of new species. Explaining extinctions is just as challenging a scientific question as explaining the evolution of new species. The sixth . m. ass . e. xtinction. Objectives. Define . extinction.. Give examples of (1) past mass extinctions (2) and recent species . extinctions.. Compare current extinction rates with background extinction . Abstract. Question. Salinity kit. Soil testing kits. pH test (water and soil). Thermometer. Materials. Data. Conclusions. Our hypothesis was that if there is a change from freshwater to saltwater, then the tidal plant species in each area will differ. The data collected from our experiment helped support our hypothesis. In our findings we saw that in the freshwater location, there was a greater amount of biodiversity and the plants were generally larger. On the other hand, we saw that in the saltwater location, the banks had less biodiversity and consisted with only Phragmites. One explanation for this is for the fact that the abundance of freshwater in the freshwater location allowed for a large variety of large plants to live in this area. However, only a thin layer of freshwater on the surface of the water was present at the saltwater location, which minimized the diversity of plant life that could live in this area. This minimized the competition in this area, allowing it to be overrun by Phragmites plants. . Very general images. What is with the . zig. . zag. ? . Has the earth cooling-shows really deep time!. Shows Cambrian Explosion period.. Mentions algae and eukaryotic cells.. Has all groups! Nice sense of how things evolved. Not straight hard to follow. Hard to tell . 1) Geological Time Scale. 2) Major Episodes in History of Life. 3) Extinctions and Radiations. Today. ’. s OUTLINE:. Geology plays an Important role in Evolutionary Thinking. Patterns of extinctions and evolutionary change in the fossil record were among the main influences on. Opportunities and. Adaptive Radiations. Overview. Extinctions. Adaptive Radiations—New Niches. Stem mammals survived and experience adaptive radiation.. Evolution of birds, feathers, flight, and flightlessness.. It is the variety of all the different living things and their homes on the planet. . BIO. . DIVERSITY. Bio= biological organisms . -living things!. diversity= the amount of variation. All seven species in danger through:. Trawler fishing. Destroyed many coral gardens that are turtle feeding grounds. Turtles hunted for leather. Eggs taken for food. Pollution of ocean water. Case Study: The Plight of Sea Turtles. By. Isma’eel Umar Yunus. BPharm., RPh.. African . League Of Young Masters (ALYM. ) Weekly meeting.. 16th March, 2013.. . Outline. T. he meaning of Biodiversity.. The scope of Biodiversity.. The benefits of Biodiversity.. The cytology or cell biology. . (Gr., . Kytos. -hollow vessel or cell, logos- to discourse) is a biological science which deals with the study of cells from morphological, biochemical, physiological, developmental, . Prepare for your AP Biology exam with confidence using these expertly crafted questions and answers. Dive into key topics and gain insights into effective study strategies. Leading TV Unit Manufacturer in Pune Innovative Designs, Superior Quality at Adeetya's Kitchen & Furniture https://adeetyas.com/tv-unit-manufacturers-in-pune.php