BlogHide Resteemsloveforlove (65)in steemstem • 4 years agoHOW PLANTS WORK: Tomatoes worth their salt.One substance that is not in short supply on this planet is salt. Two-thirds of the world is covered in salty water and there are vast deposits on land. This is a big problem because plants can’t…loveforlove (65)in steemstem • 4 years agoSENSES AND BEHAVIOUR: Learned Responses, Complex Learning and the Work of Wolfgang Kohler and Jane Goodall.Greetings to all my readers. Thanks for the constant support and motivations. I will start today's post by explaining more on the learned responses such as habituation and conditioning. Afterwards…loveforlove (65)in steemstem • 4 years agoSENSES AND BEHAVIOUR: Photoreception in cone cells, Hearing, Balance, and Simple Behaviour.Greetings to my ardent readers and to the entire steemstem community. This post is a sequel to my previous post on Senses and behaviour. In the final paragraph, I said there are two types of…loveforlove (65)in steemstem • 4 years agoSENSES AND BEHAVIOUR: Structure of The Eye and Vision at Molecular Level.The eyes are literally our window on the world. This most sensitive and intricate of sense organs has fascinated both scientists and poets for centuries. In this section, I will look at the basic…loveforlove (65)in steemstem • 4 years agoSENSES AND BEHAVIOURTalking about making fishing nets ‘visible’ to dolphins. Dolphins, porpoises and toothed whales make sense of their environment by producing a variety of squeaks, whistles and clicks at high…loveforlove (65)in steemstem • 4 years agoHORMONES: Gigantism, Acromegaly, and The Action of Adrenaline, Prostagladins, Endorphins and Pheromones.Robert Wadlow, the tallest man who ever lived, had a condition called gigantism; he probably had a tumour that produced large amounts of growth hormone. The growth plates in his long bones didn’t…loveforlove (65)in steemstem • 4 years agoHORMONES: Insects and their hormone problems.We usually think of hormones as complex chemicals that occur in the human body. But hormones control all sorts of processes in all sorts of organisms. The vital part that one hormone plays in the…loveforlove (65)in steemstem • 4 years agoTHE CHEMICALS OF LIFE: Analyzing Proteins, Collagen, and Nucleic Acid.Greetings to my dear readers and the entire steemstem community. Thanks for the constant support, I really do appreciate.This post is a continuation from where I stopped in my last post on THE…loveforlove (65)in steemstem • 4 years agoTHE CHEMICALS OF LIFE: Steroids in Athletics and the Importance of Protein to Living Organisms.Anabolic steroids are synthetic compounds that are similar in structure to testosterone, the male sex hormone. They increase anabolic (building-up) reactions, which enhance muscle size. Athletes…loveforlove (65)in steemstem • 4 years agoTHE CHEMICALS OF LIFE: Reducing Sugar, Polysaccharides and Lipids.The term ‘reducing sugar’ reflects the fact that some certain sugars can reduce other chemicals. What this means is that the sugar can donate electrons to other substances. A standard test for…loveforlove (65)in steemstem • 4 years agoTHE CHEMICALS OF LIFE: Back in time to ‘RNA world’All new organisms come from other organisms – they don’t just arise spontaneously. So how did life first come about? Could it have developed from non-living chemicals? Some experiments, carried…loveforlove (65)in steemstem • 4 years agoDNA TECHNOLOGY: Whole Organism Cloning and the Ethical Problems Surrounding it.Cloning is a difficult topic for anyone; it is not only complex biology, but it is also a tricky subject ethically, What you feel about cloning may not just depend on your knowledge of science –…loveforlove (65)in steemstem • 5 years agoDNA TECHNOLOGY: Gene Therapy and Cystic FibrosisCystic fibrosis (CF) is a genetic disease that is due to one defective allele (I’ve explained this in details in some of my past posts). About one person in 25 carries the defective allele, but…loveforlove (65)in steemstem • 5 years agoDNA TECHNOLOGY: Cloning Genes and Making Transgenic Organisms.The first recombinant DNA molecules were produced in the early 1970s when bacteria were made to copy foreign DNA along with their own, However, in 1983 an American called Cary Mulls cloned DNA…loveforlove (65)in steemstem • 5 years agoDNA TECHNOLOGY: Carbon Copy Cat And CloningIn February 2002, the first cloned cat, a kitten called cc (the typists’ abbreviation for ‘carbon copy’) made her world press debut. Cute though she was, cc highlighted some of the technological…loveforlove (65)in steemstem • 5 years agoEVOLUTION: How Many Kingdoms Are There?How many kingdoms are there?The answer to this question reveals a lot about the nature of science. There is no general agreement about how many kingdoms there are, and opinions keep changing. Many…loveforlove (65)in steemstem • 5 years agoEVOLUTION IN ACTION: The Hardy-Weinberg Principle and the Diversity of Life.The process of evolution is generally slow, and it is no surprise that for centuries people thought that the living world was static. However, there are situations where you can see the process…loveforlove (65)in steemstem • 5 years agoEVOLUTION: Natural Selection and the Evidence for Evolution.Many people tend to think that evolution is something that happened in the past and that the world of today is the finished product. But this is far from the truth: evolutionary forces are still…loveforlove (65)in steemstem • 5 years agoEVOLUTION: The Doomed Mating of the Kakapo and The Theories on The Origin of Species.On a few remote islands off the coast of New Zealand the world’s largest parrot – the kakapo – is just clinging to existence. Looking like a large green football with a beak, the kakapo was once…loveforlove (65)in steemstem • 5 years agoHOW GENES ARE INHERITED: Cystic fibrosis, Dihybrid Inheritance and when Mendel's laws don't apply. Cystic fibrosis: an example of monohybrid inheritance. The disease is caused by the mutation of a single allele. A normal allele (C) makes a membrane protein essential for the proper functioning…
