Unicellular organism From Wikipedia‚ the free encyclopedia Jump to: navigation‚ search "Single-celled" redirects here. For prison cell assignment‚ see Single-celling. Valonia ventricosa is among the largest unicellular species. A unicellular organism‚ also known as a single-celled organism‚ is an organism that consists of only one cell‚ unlike a multicellular organism that consists of multiple cells. Historically the simple single celled organisms have sometimes been referred to as monads
Premium Bacteria Eukaryote Organism
INTRODUCTION TO COGNITIVE SCIENCE Mary ET Boyle‚ Ph.D. Department of Cognitive Science UCSD Neuroscience Philosophy The Mind Computer science Linguistics The Mind How is information processed? MIND PERCEPTION LANGUAGE MEMORY REASONING Represented in behavior EMOTION Multiple research disciplines Neuroscience High level logic planning Computer Science Linguistics Decision mechanisms Anthropology Philosophy … Low level analysis levels of analysis Neuroscience Philosophy The
Premium Mind Brain Philosophy of mind
As humans‚ it is known that aging is part of growing up. The average human has a life expectancy of seventy-seven years old in the United States (Why do we age?). Most people dread their birthdays when they get to a certain age simply because that is another year older. Some people even fear aging assuming that they are another year closer to death. Does this feeling have to be this way? Should people have to fear getting older? Should they actually be looking forward to it? Many Americans
Premium Human Ageing Aging
TimeLine of Genetics 1750 B.C.E. The Sumerians brew beer. 500 B.C.E. The Chinese use moldy soybean curds as an antibiotic to treat boils. C.E. 100 Powdered chrysanthemum is used in China as an insecticide. 1590 The microscope is invented by Zacharias Janssen. 1663 Cells are first described by Robert Hooke. 1675 Antonie van Leeuwenhoek discovers bacteria. 1797 Edward Jenner inoculates a child with a viral vaccine to protect him from smallpox. 1830 Proteins are
Premium DNA
Is it ethical to feed live food to exotic pets? Abstract Live food items are often fed to exotic pet species whether they be birds‚ amphibians‚ reptiles or mammals. This raises issues of welfare‚ both of the animals fed live prey items and the prey itself. Concerns over live food welfare are particularly marked in the feeding of vertebrate prey items and evidence presented here shows the prolonged time taken for rodents to die‚ this fuelling these concerns. And yet the welfare of all exotic
Premium Mammal Pet Morality
AP Biology Reading Guide Fred and Theresa Holtzclaw Chapter 33: Invertebrates Name _______________________ Period ___________ Chapter 33: Invertebrates Chapters 31‚ 32‚ and 33 should be considered as a single unit‚ and you should try to put all of them together in a single conceptual framework. Due to the scope of our course‚ you are likely to see more general questions on individual phyla. For each of the phyla that we highlight in the questions that follow‚ try to know the characters that are
Premium Annelid Phylum Arthropod
response of C. elegans to electroshock. Despite having a simpler nervous system‚ C. elegans are a commonly used in vivo model because of similar morphologies to mammals especially in GABA inhibitory neurotransmission. Other convulsive models in C. elegans use the GABA receptor antagonist pentylenetetrazole (PTZ) to induce seizures but this compound often leads to paralysis. This novel electroshock technique is able to quantify both the paralysis and convulsions occurring in C. elegans following electric
Premium Drug addiction Dopamine Brain
Abstract Hutchinson–Gilford progeria syndrome is an extreme rare genetic disorder that catastrophically influences children in pre-mature aging and dying in their teenagers. So far‚ all drugs used to treat this disease are focusing on reducing complications and extending the life spans of patients‚ but no treatment has been proven to treat this disease directly and effectively. Fortunately‚ the new drug named farnesyltransferase inhibitors appears recently in the research field of Hutchinson–Gilford
Premium Genetics DNA Gene
AP Biology‚ Chapter 33 Invertebrates [by clade] SUMMARY INTRODUCTION PARAZOA Introduction Phylum Porifera: Sponges are sessile with porous bodies and choanocytes 1. Identify the parts of a sponge (including the spongocoel‚ porocyte‚ epidermis‚ choanocyte‚ mesohyl‚ amoebocyte‚ osculum‚ and spicule) and describe the function of each. a. Lifestyle: sessile‚ immobile filter feeders b. Water circulation i. Epidermis seals outside ii. Flagellated choanocytes lining
Premium Annelid Phylum Cnidaria
Nervous system - Wikipedia‚ the free encyclopedia http://en.wikipedia.org/wiki/Nervous_system Nervous system From Wikipedia‚ the free encyclopedia The nervous system is an organ system containing a network of specialized cells called neurons that coordinate the actions of an animal and transmit signals between different parts of its body. In most animals the nervous system consists of two parts‚ central and peripheral. The central nervous system of vertebrates (such as humans) contains
Premium Nervous system Brain Central nervous system