How did flightless birds evolve? How did the evolution of the shrinking cod come to be? In this lesson, we learn about the evolution of the flightless birds, such as cormorants, and the evolution of the shrinking cod in our biology selection case studies.
Biology Unit 2 Study Guide: Basic Building Blocks of Life. Protein, lipid, nucleic acid, carbohydrate, properties of water, enzymes, organelles. With examples and answers to help make biomolecules easy to learn!
Biology Unit 1 Study Guide: Ecology and Scientific Method, including Characteristics of Life, Biodiversity, Cycles of Matter, and Global Change. With examples and answers to help make ecology easy to learn!
In this lesson, we explain the differences between flippase, floppase, and scramblase. Flippase vs Floppase vs Scramblase as lipid transporters in the cell membrane with Quick and Easy Explanation
In this lesson, we explain what types of molecules can pass through the cell plasma membrane and what are the factors that determine whether a molecule can cross a cell membrane: Quick and Easy Explanation on the Cell Membrane
In this quick and easy lesson, we explain what is the Cori cycle, how the Cori cycle works, what is its clinical significance, and where is the Cori cyle located: MCAT and USMLE medicine.
In this lesson, we will explain the differences between the upper and lower respiratory system and the differences between upper respiratory tract infections and lower respiratory tract infections.
What is the difference between Kwashiorkor and Marasmus? USMLE protein-energy malnutrition diseases; we explain the differences, including causes, symptoms, comparative medical charts.
What are the differences between the left lung and right lung? Here, we detail quick and easy to learn summary points of the right lung vs left lung. Left vs Right Lung
[Student Interview] May the Mass x Acceleration be with you! – Physics in the Lens of a Lifelong Learning Student
As the sun slowly rises in the early mornings of Japan, Kenji a young and bright high school student eagerly heads off to school. In his high-collared black uniform and with his backback strapped around his shoulders, he blends in easily among the crowd of other high school […]
Freddie is a 13 year-old schoolboy living in United Kingdom’s England. While attending secondary school and juggling schoolwork and extracurriculars, this young and talented student also enjoys channeling into his creativity by creating unique educational games and animations, shared around the world. In his latest project, “What does […]
From Superman and Wonder Woman to Captain America and Black Widow, every spectacular star-spangled superhero team seems to rock and roll with the teamwork of both the XY and XX chromosomes. While our world may not have the fantasy superhero team flying in the sky or wearing red […]
Intracellular Digestion vs Extracellular Digestion. What’s the Difference Between the Two Types of Digestion? In this article, we explore the definitions and difference between Intracellular and Extracellular Digestion.
Lovely, isn’t she? (Yes, the furry one above.) She’s Your 65-Million-Year-Old Mother. Through modern computer analysis and evolutionary data, Maureen O’Leary a researcher from Stony Brook University and her colleagues discovered the last known common ancestor of placentals (Scientific American). Modern placentals include animals such as whales, bats, […]
In this lesson, we explain an easy 5-step quick guide on the basics of how to interpret phylogentic evolutionary trees.
We explore natural selection in action with the evolution of Darwin’s Finches, Peter Grant and Rosemary Grant’s research on the Galapagos Islands
In this lesson, we explore the essential gene mutations on Drosophila flies during development and their embryology effects: gap genes, pair rule genes, and segment polarity genes.
Telling the difference between light microscopes, electron microscope, and indirect immunofluorescence (IMF).
Where does DNA transcription start and stop? In this lesson, we explain how DNA transcription works, the start and stop of transcription, and the 3 major transcription steps.
This lesson discusses the size scales relevant to cell biology.
The cell membrane is a mosaic and fluid structure. This lesson explains the factors that affect cell membrane fluidity, increase and decrease membrane fluidity of the phospholipid bilayer.