Biology

Explore the science of life by learning about the systems and structures that make up the organisms of our world.

  • Pinocytosis
    All About Pinocytosis and Cell Drinking
  • Young boy sneezing into a tissue close up.
    An Introduction to Active Immunity and Passive Immunity
  • An antibody molecule is an example of a glycoprotein.
    What Glycoproteins Are and What They Do
  • Barrel Sponge - Parazoa
    Parazoa of the Animal Kingdom
  • Penicillium notatum is a fungus belonging to the phylum Ascomycota
    The Main Types of Fungi
  • The cell membrane is an example of a selectively permeable membrane.
    Selective Permeability Definition and Examples
  • Lung Model
    How To Make a Model of the Lungs
  • Malaria merozoites ultimately rupture red blood cells, dispersing more parasites
    The Worst Human Parasites
  • Electron Transport Chain
    Electron Transport Chain and Energy Production Explained
  • Boy presenting project at science fair
    Biology Science Fair Project Ideas
  • Amyloplast and Starch Grains
    Amyloplast and Other Types of Plastids
  • Student with anatomical model
    Human Body Project Ideas
  • Students: Plant Experiment
    10 Great Biology Activities and Lessons
  • Students in science lab
    Biology Lab Safety Rules
  • Professor Godfrey Harold Hardy
    5 Conditions for Hardy-Weinberg Equilibrium
  • Scientist with pipette loading DNA for gel electrophoresis
    Electrophoresis Definition and Explanation
  • CRISPR/Cas is a gene editing complex used in gene therapy and as a diagnostic tool.
    Introduction to CRISPR Genome Editing
  • Harvard University
    Top Biology Programs in U.S. Universities
  • Father playing video games with son
    How Video Games Affect Brain Function
  • Students Studying in a Library
    How to Write a Bibliography For a Science Fair Project
  • Bacteriophage Cell Lysis
    What Is a Bacteriophage?
  • Bacterial Streaks On Agar Plates
    How To Streak a Bacterial Culture
  • Anthrax Bacteria
    Biological Weapons
  • DNA Model
    How To Make a DNA Model Using Candy
  • Cytokinesis
    Cytokinesis
  • Ornithischian Dinosaur Cladogram
    What Is a Cladogram? Definition and Examples
  • hoverfly and flower
    What Is Coevolution? Definition and Examples
  • Adipose Tissue
    The Purpose and Composition of Adipose Tissue
  • Steps of the scientific method
    Scientific Method Example
  • Diagram showing the process of glycolysis
    Glycolysis Steps
  • Humans and other vertebrate show cephalization.
    Cephalization: Definition and Examples
  • Animals Competing for Resources
    What Is Resource Partitioning? Definition and Examples
  • Carolus Linnaeus
    Taxonomy and Organism Classification
  • Computer illustration of a DNA Polymerase molecule
    Biology Prefixes and Suffixes: -ase
  • Digital illustration of the Human Digestive System
    Organ Systems Study Guide
  • man and woman walk together on the beach
    Why Men Are Typically Taller Than Women
  • Young college students in class
    How To Take Good Biology Notes
  • The wood tick is an example of an ectoparasite.
    Parasitism: Definition and Examples
  • Close up of white and orange tigers lounging in grass.
    6 Things You Should Know About Biological Evolution
  • Diffusion: Passive Transport and Facilitated Diffusion
  • Male and Female Hormones
    How Steroid Hormones Work
  • Moon Jellyfish
    Biology: The Study of Life
  • Methanococcoides Archaea
    Archaea Domain
  • Helicobacter pylori
    Bacteria: Friend or Foe?
  • Thin Horses
    Biology Prefixes and Suffixes: -troph or -trophy
  • Tongue Bacteria
    Differences Between Bacteria and Viruses
  • celldivision.jpg
    3 Types of Sexual Life Cycles
  • Energy and Thermodynamics
    Laws of Thermodynamics as Related to Biology
  • Cytoskeleton
    Frequently Asked Biology Questions and Answers
  • Red Blood Cells in Bloodstream
    12 Interesting Facts About Blood
  • Focused high school student microscope listening science classroom
    How to Format a Biology Lab Report
  • Cicada Exoskeleton
    Biology Prefixes and Suffixes: Ex- or Exo-
  • T4 Bacteriophage
    7 Facts About Bacteriophages
  • Tree Bark Split
    Peri Prefix Meaning in Biology
  • Evolution of life
    Levels of Taxonomy Used in Biology
  • Influenza Virus (H1N1)
    7 Facts About Viruses
  • Anaphase I For Bluebell
    Biology Prefixes and Suffixes: ana-
  • Erythrocytes (Red Blood Cells)
    Biology Prefixes and Suffixes: Erythr- or Erythro-
  • Phlebotomist taking a blood sample from patient
    Biology Suffix Definition: -otomy, -tomy
  • Blood Clot
    Biology Prefixes and Suffixes: hem- or hemo- or hemato-
  • Hand sanitizer
    Do Hand Sanitizers Work Better Than Soap and Water?
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