Biology: Most Popular Articles
These articles are the most popular over the last month.
Anatomy of the Brain - Organs of the Body
Information and resources pertaining to the brain.
Information and resources pertaining to the brain.
Organs of the Body - Anatomy of the Heart
Information and resources pertaining to the heart.
Information and resources pertaining to the heart.
Stages of Mitosis
A stage-by-stage guide to the phases of mitosis.
A stage-by-stage guide to the phases of mitosis.
Online Dissections
Online dissections allow you to experience actual dissections without all of the mess.
Online dissections allow you to experience actual dissections without all of the mess.
The Study of Life
What is biology? Simply put, it is the study of life.
What is biology? Simply put, it is the study of life.
Anatomy of the Brain - Amygdala
Information and resources pertaining to the amygdala
Information and resources pertaining to the amygdala
Biology Science Project Ideas
Here are some great ideas for biology related science fair projects related to animals, plants and the human body.
Here are some great ideas for biology related science fair projects related to animals, plants and the human body.
Blood Vessels
Information and resources pertaining to blood vessels.
Information and resources pertaining to blood vessels.
Organ Systems
The human body is made up of several organ systems that work together as one unit.
The human body is made up of several organ systems that work together as one unit.
Aorta
Information and resources pertaining to the aorta of the heart.
Information and resources pertaining to the aorta of the heart.
Arteries
Information and resources pertaining to arteries.
Information and resources pertaining to arteries.
Allele
Definition of allele.
Definition of allele.
Biology Prefixes and Suffixes
Learn about common biology prefixes and suffixes.
Learn about common biology prefixes and suffixes.
Circulatory System
Information and resources pertaining to the circulatory system.
Information and resources pertaining to the circulatory system.
Chromosomes and Gender
Chromosomes are long, stringy aggregates of genes that carry heredity information. Gender is determined by the presence or absence of certain chromosomes.
Chromosomes are long, stringy aggregates of genes that carry heredity information. Gender is determined by the presence or absence of certain chromosomes.
Reproduction in Animals: Asexual Reproduction
An introduction to the mechanisms of asexual reproduction in animals.
An introduction to the mechanisms of asexual reproduction in animals.
Alcohol Hangover
Information on how alcohol contributes to hangovers.
Information on how alcohol contributes to hangovers.
Connective Tissue
Explore the structure and function of animal tissues, including connective tissue.
Explore the structure and function of animal tissues, including connective tissue.
Cellular Respiration
Cellular respiration is a process by which cells harvest the energy stored in food.
Cellular respiration is a process by which cells harvest the energy stored in food.
Mendel's Law of Independent Assortment
The principles that govern heredity were discovered by a monk named Gregor Mendel in the 1860's. One of these principles is now called Mendel's law of independent assortment.
The principles that govern heredity were discovered by a monk named Gregor Mendel in the 1860's. One of these principles is now called Mendel's law of independent assortment.
Anatomy of the Brain - Thalamus
Information and resources pertaining to the thalamus
Information and resources pertaining to the thalamus
Mendel's Law of Segregation
The principles that govern heredity were discovered by a monk named Gregor Mendel in the 1860's. One of these principles is now called Mendel's law of segregation.
The principles that govern heredity were discovered by a monk named Gregor Mendel in the 1860's. One of these principles is now called Mendel's law of segregation.
Organs of the Body - Anatomy of the Brain
Information and resources pertaining to the brain
Information and resources pertaining to the brain
Frog Anatomy
Information on internal and external frog anatomy.
Information on internal and external frog anatomy.
Capillaries
Information and resources pertaining to capillaries.
Information and resources pertaining to capillaries.
Predator vs. Prey
The predator-prey relationship is important in maintaining balance among different animal species.
The predator-prey relationship is important in maintaining balance among different animal species.
Mitosis Study Guide
This study guide introduces you to the basics of mitosis and the mitotic process.
This study guide introduces you to the basics of mitosis and the mitotic process.
Mitosis Animation
Animation of the phases of mitosis.
Animation of the phases of mitosis.
Cardiac Cycle
Information and resources pertaining to the cardiac cycle.
Information and resources pertaining to the cardiac cycle.
Anatomy of the Brain - Brainstem
Information and resources pertaining to the brainstem
Information and resources pertaining to the brainstem
Anatomy of the Brain - Medulla Oblongata
Information and resources pertaining to the medulla oblongata
Information and resources pertaining to the medulla oblongata
Journey into the Cell: Mitochondria
Explore the structure and function of eukaryotic mitochondria.
Explore the structure and function of eukaryotic mitochondria.
Peripheral Nervous System
The nervous system can be divided into two parts, the central nervous system and the peripheral nervous system.
The nervous system can be divided into two parts, the central nervous system and the peripheral nervous system.
Anatomy of the Brain - Hypothalamus
Information and resources pertaining to the hypothalamus
Information and resources pertaining to the hypothalamus
Hand Sanitizers vs. Soap and Water
You've heard the claims of hand sanitizers being able to kill 99.9 percent of germs. Now read the truth.
You've heard the claims of hand sanitizers being able to kill 99.9 percent of germs. Now read the truth.
Journey into the Cell: The Nucleus
Explore the structure and function of the nucleus in eukaryotic cells.
Explore the structure and function of the nucleus in eukaryotic cells.
Stages of Meiosis
A stage-by-stage guide to the phases of meiosis.
A stage-by-stage guide to the phases of meiosis.
Reproduction in Animals: Sexual Reproduction
An introduction to the mechanisms of sexual reproduction in animals.
An introduction to the mechanisms of sexual reproduction in animals.
Biology Games and Quizzes
Try these biology games and quizzes and find out how much you really know about biology.
Try these biology games and quizzes and find out how much you really know about biology.
Anatomy of the Brain - Hippocampus
Information and resources pertaining to the hippocampus
Information and resources pertaining to the hippocampus
Anatomy of the Stomach
Information on the anatomy of the stomach and the types of cells that cover the stomach.
Information on the anatomy of the stomach and the types of cells that cover the stomach.
Anatomical Directional Terms - Caudal
Directional terms for anatomy
Directional terms for anatomy
Top Biology Programs
The top biology programs from colleges and universities in the United States.
The top biology programs from colleges and universities in the United States.
Anatomy of the Brain - Cerebrum
Information and resources pertaining to the cerebrum
Information and resources pertaining to the cerebrum
Anatomy of the Brain - Cerebellum
Information and resources pertaining to the cerebellum
Information and resources pertaining to the cerebellum
10 Steps of Glycolysis
In glycolysis, glucose is split into two molecules of a three-carbon sugar.
In glycolysis, glucose is split into two molecules of a three-carbon sugar.
Baby Animal Name Game
Do you know what a baby zebra is called? Play the Baby Animal Name Game and find out.
Do you know what a baby zebra is called? Play the Baby Animal Name Game and find out.
Pulmonary Veins
Information and resources pertaining to the pulmonary veins of the heart.
Information and resources pertaining to the pulmonary veins of the heart.
DNA Models
Constructing DNA models is a great way to learn about DNA structure, function, and replication.
Constructing DNA models is a great way to learn about DNA structure, function, and replication.
Protein Function
Proteins are very important molecules in our cells. Each protein within the body has a specific function.
Proteins are very important molecules in our cells. Each protein within the body has a specific function.
Muscle Tissue
Explore the structure and function of cardiac, smooth, and skeletal muscle tissue.
Explore the structure and function of cardiac, smooth, and skeletal muscle tissue.
Veins
Information and resources pertaining to veins.
Information and resources pertaining to veins.
Anatomy of the Brain - Pons
Information and resources pertaining to the pons
Information and resources pertaining to the pons
Viruses
An introduction to the structure of viruses.
An introduction to the structure of viruses.
Phases of the Cardiac Cycle
The cardiac cycle is the cycle of events that occurs as the heart contracts.
The cardiac cycle is the cycle of events that occurs as the heart contracts.
Directional Terms/Body Planes
Anatomical directional terms and body planes describe the locations of structures in relation to other structures or locations in the body.
Anatomical directional terms and body planes describe the locations of structures in relation to other structures or locations in the body.
Plant Cells and Tissues
A look at the structure and function of plant cells and tissues.
A look at the structure and function of plant cells and tissues.
Digestive System
Information and resources pertaining to the human digestive system.
Information and resources pertaining to the human digestive system.
Epithelial Tissue
Explore the structure and function of animal tissues, including epithelial tissue.
Explore the structure and function of animal tissues, including epithelial tissue.
Six Kingdoms of Life
Living organisms are classified into one of six Kingdoms of life.
Living organisms are classified into one of six Kingdoms of life.
Journey into the Cell
Learn about the structure of the fundamental unit of life -- the cell.
Learn about the structure of the fundamental unit of life -- the cell.
Did You Know? - The Human Body
Discover interesting facts about the human body.
Discover interesting facts about the human body.
Heart Valves
Information and resources pertaining to the human heart valves.
Information and resources pertaining to the human heart valves.
Anatomy of the Brain - Temporal Lobes
Information and resources pertaining to the temporal lobes
Information and resources pertaining to the temporal lobes
Anatomy of the Brain - Divisions of the Brain - Mesencephalon
Information and resources pertaining to the mesencephalon
Information and resources pertaining to the mesencephalon
Cerebral Cortex
The cerebral cortex is the layer of the brain often referred to as gray matter. It is the outer portion of the cerebrum.
The cerebral cortex is the layer of the brain often referred to as gray matter. It is the outer portion of the cerebrum.
Meiosis Animation I
Animation of the phases of meiosis I.
Animation of the phases of meiosis I.
The Effects of Carbon Monoxide
Information and resources pertaining to carbon monoxide poisoning.
Information and resources pertaining to carbon monoxide poisoning.
Brain Basics
The brain is one of the largest and most important organs of the human body. Weighing in at about three pounds, this organ has a wide range of responsibilities.
The brain is one of the largest and most important organs of the human body. Weighing in at about three pounds, this organ has a wide range of responsibilities.
Plant Tissue Systems
A look at the structure and function of plant cells and tissues.
A look at the structure and function of plant cells and tissues.
Anatomy of the Brain - Cerebral Cortex
Information and resources pertaining to the cerebral cortex
Information and resources pertaining to the cerebral cortex
Meiosis
An introduction to the process of meiosis.
An introduction to the process of meiosis.
Homozygous - A Genetics Definition
Definition of homozygous.
Definition of homozygous.
Anatomy of the Brain - Central Sulcus (Fissure of Rolando)
Information and resources pertaining to the central sulcus
Information and resources pertaining to the central sulcus
Reproduction
Discover the many ways that animals can reproduce through asexual reproduction.
Discover the many ways that animals can reproduce through asexual reproduction.
Flowering Plants
Learn about the characteristics and parts of a flowering plant.
Learn about the characteristics and parts of a flowering plant.
Heterozygous
Definition of the word heterozygous.
Definition of the word heterozygous.
Anatomy of the Brain - Basal ganglia
Information and resources pertaining to the basal ganglia
Information and resources pertaining to the basal ganglia
Journey into the Cell: Ribosomes
Explore the structure and function of eukaryotic ribosomes.
Explore the structure and function of eukaryotic ribosomes.
Pericardium
Information and resources pertaining to the pericardium of the human heart.
Information and resources pertaining to the pericardium of the human heart.
Anatomical Directional Terms
Directional terms for anatomy
Directional terms for anatomy
Anatomy of the Brain - Parietal Lobes
Information and resources pertaining to the parietal lobes
Information and resources pertaining to the parietal lobes
Biology Questions
Get answers to frequently asked biology related questions.
Get answers to frequently asked biology related questions.
Human Brain Quiz
Take the Human Brain Quiz and discover how much you know about the brain.
Take the Human Brain Quiz and discover how much you know about the brain.
Digestive System - Salivary Glands and Saliva
Information on salivary glands, mucus, saliva and their function in digestion.
Information on salivary glands, mucus, saliva and their function in digestion.
Limbic System
The limbic system is responsible for controlling various functions in the body. Structures of this system include the hippocampus, hypothalamus, and thalamus.
The limbic system is responsible for controlling various functions in the body. Structures of this system include the hippocampus, hypothalamus, and thalamus.
Pulmonary Artery
Information and resources pertaining to the pulmonary artery of the heart.
Information and resources pertaining to the pulmonary artery of the heart.
Bio-Experiments
View exciting examples of biology experiments that can be used by parents and teachers at home or at school.
View exciting examples of biology experiments that can be used by parents and teachers at home or at school.
Frog Dissection Quiz
Think you know all there is to know about frog dissections? Take this virtual frog dissection quiz.
Think you know all there is to know about frog dissections? Take this virtual frog dissection quiz.
Baby Animal Name Game II
Play the Baby Animal Name Game and discover the names of various baby animals.
Play the Baby Animal Name Game and discover the names of various baby animals.
Biology Homework Help
Need help with your biology homework? Find resources and information to help you answer some of your biology homework questions.
Need help with your biology homework? Find resources and information to help you answer some of your biology homework questions.
How To Make a Working Model of the Lungs
an easy way to make a working model of the lungs
an easy way to make a working model of the lungs
Unusual Plants
Discover some interesting and unusual plants.
Discover some interesting and unusual plants.
10 Great Biology Activities an
Biology activities and lessons allow students to investigate and learn about biology through hands on experience.
Biology activities and lessons allow students to investigate and learn about biology through hands on experience.
Anatomy of the Brain - Cranial Nerves
Information and resources pertaining to cranial nerves
Information and resources pertaining to cranial nerves
Biology Study Tips
Need help studying for biology? I've got some great biology study tips for you.
Need help studying for biology? I've got some great biology study tips for you.
Architecture of the Liver
Information on the anatomy of the liver and biliary tract.
Information on the anatomy of the liver and biliary tract.
Anatomy of the Brain - Pituitary Gland
Information and resources pertaining to the pituitary gland
Information and resources pertaining to the pituitary gland
Endangered Species
Endangered species are animals and plants that are on the verge of vanishing from the earth.
Endangered species are animals and plants that are on the verge of vanishing from the earth.
The Heart
Information and resources pertaining to the human heart.
Information and resources pertaining to the human heart.
Bacteria and Food Poisoning
Bacterial foodborne diseases strike millions of people each year. Here is a list of a few bacteria that cause food poisoning and foodborne illness.
Bacterial foodborne diseases strike millions of people each year. Here is a list of a few bacteria that cause food poisoning and foodborne illness.
Nervous Tissue
A look at the structure and function of nervous tissue.
A look at the structure and function of nervous tissue.
Vena Cavae
Information and resources pertaining to the vena cavae of the heart.
Information and resources pertaining to the vena cavae of the heart.
Diffusion, Passive Transport and Osmosis
Diffusion is the tendency of molecules to spread into an available space. Without other outside forces at work, substances will move/diffuse from a more concentrated environment to a less concentrated environment.
Diffusion is the tendency of molecules to spread into an available space. Without other outside forces at work, substances will move/diffuse from a more concentrated environment to a less concentrated environment.
Anatomy of the Brain - Frontal Lobes
Information and resources pertaining to the frontal lobes
Information and resources pertaining to the frontal lobes
Centrioles
Information and resources pertaining to centrioles and cell division.
Information and resources pertaining to centrioles and cell division.
Predator or Prey Game
In this game you must choose the correct predator or prey for each question.
In this game you must choose the correct predator or prey for each question.
Heterozygous - A Genetics Definition
Definition of heterozygous.
Definition of heterozygous.
Anatomy of the Brain - Limbic System
Information and resources pertaining to the limbic system
Information and resources pertaining to the limbic system
Anatomy of the Brain - Cerebral Cortex Lobes
Information and resources pertaining to the cerebral cortex lobes
Information and resources pertaining to the cerebral cortex lobes
DNA Transcription
DNA transcription is a process that involves the transcribing of genetic information from DNA to RNA.
DNA transcription is a process that involves the transcribing of genetic information from DNA to RNA.
Sex Chromosome Abnormalities
Sex chromosome abnormalities occur as a result of chromosome mutations brought on by mutagens or problems that occur during meiosis.
Sex chromosome abnormalities occur as a result of chromosome mutations brought on by mutagens or problems that occur during meiosis.
Lipids
Lipids are very diverse in both their respective structures and functions. Examples of lipids include fats, phospholipids and steroids.
Lipids are very diverse in both their respective structures and functions. Examples of lipids include fats, phospholipids and steroids.
Fascinating Animal Facts
Discover wondrous and fascinating facts about animals.
Discover wondrous and fascinating facts about animals.
Mitosis Glossary
This mitosis glossary is a good resource for finding succinct, practical, and meaningful biology definitions for common mitosis terms.
This mitosis glossary is a good resource for finding succinct, practical, and meaningful biology definitions for common mitosis terms.
Myocardium
Information and resources pertaining to the myocardium of the heart.
Information and resources pertaining to the myocardium of the heart.
Cell Biology Glossary
This cell biology glossary is a good resource for finding succinct, practical, and meaningful biology definitions for various cell biology terms.
This cell biology glossary is a good resource for finding succinct, practical, and meaningful biology definitions for various cell biology terms.
Virus Replication
How do viruses reproduce?
How do viruses reproduce?
Mendel's Law of Segregation - A Genetics Definition
Definition of Mendel's law of segregation.
Definition of Mendel's law of segregation.
Photosynthesis
Photosynthesis is a process in which light energy is used to produce sugar and other organic compounds.
Photosynthesis is a process in which light energy is used to produce sugar and other organic compounds.
Cardiovascular Quiz
Take the Cardiovascular System Quiz!
Take the Cardiovascular System Quiz!
Genetics Basics
Genetics is the study of heredity or inheritance. These resources will assist in the understanding of basic genetics.
Genetics is the study of heredity or inheritance. These resources will assist in the understanding of basic genetics.
Ventricles
Information and resources pertaining to the ventricles of the heart.
Information and resources pertaining to the ventricles of the heart.
Journey into the Cell: The Endoplasmic Reticulum
Explore the structure and function of the eukaryotic endoplasmic reticulum.
Explore the structure and function of the eukaryotic endoplasmic reticulum.
Anatomy of the Brain - Broca's Area
Information and resources pertaining to Broca's area
Information and resources pertaining to Broca's area
Anatomy of the Brain - Occipital Lobes
Information and resources pertaining to the occipital lobes
Information and resources pertaining to the occipital lobes
Homozygous
Definition of the word homozygous.
Definition of the word homozygous.
Atria
Information and resources pertaining to the atria of the heart.
Information and resources pertaining to the atria of the heart.
Anatomy of the Brain - Corpus Callosum
Information and resources pertaining to the corpus callosum.
Information and resources pertaining to the corpus callosum.
How To Make a DNA Model Using Candy
a simple way to construct a dna model using candy
a simple way to construct a dna model using candy
Anatomy of the Brain - Divisions of the Brain - Diencephalon
Information and resources pertaining to the diencephalon
Information and resources pertaining to the diencephalon
Gametes - A Cell Biology Definition
Definition of gametes.
Definition of gametes.
Cloning Techniques
Techniques used in cloning.
Techniques used in cloning.
Reproduction II
Learn about fertilization and sexual reproduction.
Learn about fertilization and sexual reproduction.
Incomplete Dominance - A Genetics Definition
Definition of incomplete dominance.
Definition of incomplete dominance.
Bacteriophages
Animations of the lytic life cycle of a bacteriophage.
Animations of the lytic life cycle of a bacteriophage.
Bio-Trivia
Here are a few biology related questions for all of you trivia buffs out there.
Here are a few biology related questions for all of you trivia buffs out there.
Anatomy of the Brain - Insula
Information and resources pertaining to the insula
Information and resources pertaining to the insula
Prophase
Onion root tip image in early prophase of mitosis.
Onion root tip image in early prophase of mitosis.
Taxonomy
Taxonomy is a hierarchical system for classifying and identifying organisms.
Taxonomy is a hierarchical system for classifying and identifying organisms.
Centrioles - A Cell Biology Definition
Definition of centrioles.
Definition of centrioles.
Anatomical Directional Terms - Anterior
Directional terms for anatomy
Directional terms for anatomy
Mendel's Law of Independent Assortment - A Genetics Definition
Definition of Mendel's law of independent assortment.
Definition of Mendel's law of independent assortment.