Mitosis and Meiosis - Comparison Chart, Video and Pictures Cells divide and reproduce in two ways: mitosis and meiosis. Mitosis is a process of cell division that results in two genetically identical daughter cells developing from a single parent cell. Meiosis, on the other hand, is the division of a germ cell involving two fissions of the nucleus and giving rise to four gametes, or sex cells, each possessing half the number of chromosomes of the original cell. Mitosis is used by single-celled organisms to reproduce; it is also used for the organic growth of tissues, fibers, and membranes.
Explore, Play, Discover: Websites, Activities & More Search form Search Low-cost, teacher-tested activities for the classroom and the curious. Science of Cooking • Explore the science behind food and cooking with recipes, activities, and Webcasts.PreviousNext Discover Browse lessons and activities from EOL and our partners. Lessons and activities include relevant materials, EOL Collections and podcasts that can be used to supplement existing curriculum or on their own. These activities are aimed at upper elementary and middle school students but can be modified for elementary or high school students. Each lesson or activity is aligned to the Next Generation Science Standards (NGSS). Please contact us with feedback or suggestions. Behavior Biodiversity Classification Citizen Science Ecology Evolution Impacts Research
NASA Kids Club Skip to main content NASA Kids Club › Text Only Site 5 Great Web Tools to Enhance Collaboration in Class April 22, 2015 If anything, web technologies have redesigned the notion of collaboration and rendered it an open construct independent of any conceivable spatio-temporal constraints. For instance, in our educational context, possibilities for collaborative learning are bigger than ever before. Teachers and students have at their hands a variety of powerful softwares and web-based tools to help them engage in collaborative learning anytime, anywhere. From popular learning management systems (LMS) such as Blackboard, Collaborate, and Moodle to social networking websites like Twitter and Google Plus, collaboration opportunities are limitless. The first challenge we encountered when we started working on this post is the huge number of platforms that can be placed under category of collaboration. 1- Collaborize Classroom
Active and Passive Transport Active and passive transport are biological processes that move oxygen, water and nutrients into cells and remove waste products. Active transport requires chemical energy because it is the movement of biochemicals from areas of lower concentration to areas of higher concentration. On the other hand, passive trasport moves biochemicals from areas of high concentration to areas of low concentration; so it does not require energy. Process There are two types of active transport: primary and secondary. In primary active transport, specialized trans-membrane proteins recognize the presence of a substance that needs to be transported and serve as pumps, powered by the chemical energy ATP, to carry the desired biochemicals across.
Science Friday Feb. 12, 2015 Is Pedigree What It's Cracked Up To Be? Data distilled 80,000 individual dog profiles revealed that outside of the show ring, there's a lot of behavioral variation within any given breed. Plant Cell vs Animal Cell Plant and animal cells have several differences and similarities. For example, animal cells do not have a cell wall or chloroplasts but plant cells do. Animal cells are round and irregular in shape while plant cells have fixed, rectangular shapes. Plant and animal cells are both eukaryotic cells, so they have several features in common, such as the presence of a cell membrane, and cell organelles, like the nucleus, mitochondria and endoplasmic reticulum. Chloroplasts Plants are autotrophs; they produce energy from sunlight through the process of photosynthesis, for which they use cell organelles called chloroplasts.
AP Biology Teaching & Learning Resources Welcome! Here you will find copies of most of the labs and activities that we perform in class. Some are only available from the AP Lab book, so I cannot post those online. Anatomy & Phyiology The Effects of Stimulants & Depressants on Heart RateThis is a wonderful lab developed by Paula Donham (Olathe East High School, Kansas). She has given me permission to share it.
Virtual Labs The links on this page are all VIRTUAL LABS offered by the Glencoe textbook company. These labs give the students the adventure of laboratory experimentation without costly supplies, worrisome environmental and safety issues, or time-consuming clean up. They are from all different areas of science: Biology, Physics, Genetics, Earth Science, Physical Science, and Chemistry. Please feel free to try these at home! Students will be directed to specific labs in class but there are over 100 labs offered here! To return to the home page, please click here: