This is a introduction to Animal diversity! Animals are super diverse, and even though this is an introduction, it is going to be a long post. So grab a cup of tea, sit back, and enjoy the read! This is part one and there will be a second part posted later. The first animal fossils [...]
Welcome to our continuing AP Biology/ General Biology series here on STEM Talks! The purpose of this post is to talk about population evolution Each organism's traits affect its survival and reproductive success compared with those of other individuals. But the evolutionary impact of natural selection is only apparent in how a population of organisms [...]
Welcome to the next StemTalk! This is going to be about the tree of life. This talk is going to go over the history of Earth's formation in a very brief manner. Earth formed around 4.6 billion years ago, condensing from a large cloud of dust and space rock to form the first structure. Condensation [...]
Welcome to our continuing AP Biology/ General Biology series here on STEM Talks! The purpose of this post is to give you a very basic introduction to evolution. Evolution, in a narrow concept, is a change in the genetic composition of a population from generation to generation. For the time being, we will identify evolution [...]
Hey all! This blog post is a part of STEMTalksNC’s ever expanding General Biology Series. In the last post, we talked about how macromolecules were built. In this post, we will examine the structure and function of carbohydrates. Monosaccharides Carbohydrates include sugars and polymers of sugar. Monosaccharides, the simplest carbohydrates, generally have molecular formulas that [...]
Given the rich diversity of life, we might expect organisms to have an enormous variety of molecules. However the significant large molecules of all living things can be classified into four categories: carbohydrates, lipids, proteins, and nucleic acids. Only three of these categories- carbohydrates, proteins, and nucleic acids- are huge on a molecular scale and are [...]
Hey all! This blog post is a part of STEMTalksNC’s ever expanding General Biology Series. In this post, it would be helpful to know high school chemistry. Although water is the universal medium for life on Earth, living organisms are made up of chemicals that are based mostly on the element carbon. Of all chemical [...]
Living Organisms are distinguished by their ability to reproduce their own kind. Heredity is the transmission of traits from one generation to the next. Along with these these inherited traits, there is also variation- the offspring differ somewhat in appearance from parents and siblings. We will first establish that offspring acquire genes from parents by inheriting chromosomes.
Today, it is widely known that DNA is the genetic material. However, the identification of the molecules of inheritance came as a major challenge for biologists in the 20th Century.
Hey all! This blog post is a part of STEM Talks' ever expanding General Biology Series. For this post, it is recommended you understand the basics of cell division and cell cycle phases. The cell cycle seems to be governed by cytoplasmic and extracellular signals. A cell cycle control system controls the cell cycle. It [...]