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.
Alcohol Hangover
Information on how alcohol contributes to hangovers.
Information on how alcohol contributes to hangovers.
Stages of Mitosis
A stage-by-stage guide to the phases of mitosis.
A stage-by-stage guide to the phases of mitosis.
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.
Aorta
Information and resources pertaining to the aorta of the heart.
Information and resources pertaining to the aorta of the heart.
Anatomy of the Brain - Amygdala
Information and resources pertaining to the amygdala
Information and resources pertaining to the amygdala
Circulatory System
Information and resources pertaining to the circulatory system.
Information and resources pertaining to the circulatory system.
Organs of the Body - Anatomy of the Brain
Information and resources pertaining to the brain
Information and resources pertaining to the brain
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.
Anatomy of the Brain - Thalamus
Information and resources pertaining to the thalamus
Information and resources pertaining to the thalamus
Connective Tissue
Explore the structure and function of animal tissues, including connective tissue.
Explore the structure and function of animal tissues, including connective tissue.
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.
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.
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.
Allele
Definition of allele.
Definition of allele.
Blood Vessels
Information and resources pertaining to blood vessels.
Information and resources pertaining to blood vessels.
Arteries
Information and resources pertaining to arteries.
Information and resources pertaining to arteries.
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.
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.
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.
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
Biology Prefixes and Suffixes
Learn about common biology prefixes and suffixes.
Learn about common biology prefixes and suffixes.
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.
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.
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.
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.
Frog Anatomy
Information on internal and external frog anatomy.
Information on internal and external frog anatomy.
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.
Anatomy of the Brain - Hypothalamus
Information and resources pertaining to the hypothalamus
Information and resources pertaining to the hypothalamus
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.
Epithelial Tissue
Explore the structure and function of animal tissues, including epithelial tissue.
Explore the structure and function of animal tissues, including epithelial tissue.
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.
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.
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.
Anatomy of the Brain - Pons
Information and resources pertaining to the pons
Information and resources pertaining to the pons
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.
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.
Anatomy of the Brain - Divisions of the Brain - Mesencephalon
Information and resources pertaining to the mesencephalon
Information and resources pertaining to the mesencephalon
Cardiac Cycle
Information and resources pertaining to the cardiac cycle.
Information and resources pertaining to the cardiac cycle.
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.
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.
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.
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.
Anatomy of the Brain - Cerebrum
Information and resources pertaining to the cerebrum
Information and resources pertaining to the cerebrum
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.
Veins
Information and resources pertaining to veins.
Information and resources pertaining to veins.
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.
Stages of Meiosis
A stage-by-stage guide to the phases of meiosis.
A stage-by-stage guide to the phases of meiosis.
Anatomy of the Brain - Temporal Lobes
Information and resources pertaining to the temporal lobes
Information and resources pertaining to the temporal lobes
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.
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.
Anatomy of the Brain - Cerebellum
Information and resources pertaining to the cerebellum
Information and resources pertaining to the cerebellum
Anatomy of the Brain - Cerebral Cortex
Information and resources pertaining to the cerebral cortex
Information and resources pertaining to the cerebral cortex
Anatomical Directional Terms - Caudal
Directional terms for anatomy
Directional terms for anatomy
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.
Anatomical Directional Terms
Directional terms for anatomy
Directional terms for anatomy
Viruses
An introduction to the structure of viruses.
An introduction to the structure of viruses.
Journey into the Cell: Mitochondria
Explore the structure and function of eukaryotic mitochondria.
Explore the structure and function of eukaryotic mitochondria.
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.
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 - Basal ganglia
Information and resources pertaining to the basal ganglia
Information and resources pertaining to the basal ganglia
Flowering Plants
Learn about the characteristics and parts of a flowering plant.
Learn about the characteristics and parts of a flowering plant.
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.
Bacteriophages
Animations of the lytic life cycle of a bacteriophage.
Animations of the lytic life cycle of a bacteriophage.
Mitosis Animation
Animation of the phases of mitosis.
Animation of the phases of mitosis.
Heart Valves
Information and resources pertaining to the human heart valves.
Information and resources pertaining to the human heart valves.
Pulmonary Veins
Information and resources pertaining to the pulmonary veins of the heart.
Information and resources pertaining to the pulmonary veins of the heart.
Anatomy of the Brain - Hippocampus
Information and resources pertaining to the hippocampus
Information and resources pertaining to the hippocampus
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.
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.
Capillaries
Information and resources pertaining to capillaries.
Information and resources pertaining to capillaries.
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
Anatomy of the Brain - Parietal Lobes
Information and resources pertaining to the parietal lobes
Information and resources pertaining to the parietal lobes
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.
Homozygous - A Genetics Definition
Definition of homozygous.
Definition of homozygous.
Meiosis Animation I
Animation of the phases of meiosis I.
Animation of the phases of meiosis I.
Anatomy of the Brain - Frontal Lobes
Information and resources pertaining to the frontal lobes
Information and resources pertaining to the frontal lobes
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.
Meiosis
An introduction to the process of meiosis.
An introduction to the process of meiosis.
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.
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.
Cell Division - Mitosis
Explore the elegant process of mitosis or cell division that enables organisms to grow and reproduce.
Explore the elegant process of mitosis or cell division that enables organisms to grow and reproduce.
Reproduction
Discover the many ways that animals can reproduce through asexual reproduction.
Discover the many ways that animals can reproduce through asexual reproduction.
Heterozygous - A Genetics Definition
Definition of heterozygous.
Definition of heterozygous.
The Heart
Information and resources pertaining to the human heart.
Information and resources pertaining to the human heart.
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
Digestive System
Information and resources pertaining to the human digestive system.
Information and resources pertaining to the human digestive system.
Anatomy of the Brain - Pituitary Gland
Information and resources pertaining to the pituitary gland
Information and resources pertaining to the pituitary gland
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.
Virus Replication
How do viruses reproduce?
How do viruses reproduce?
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.
Pulmonary Artery
Information and resources pertaining to the pulmonary artery of the heart.
Information and resources pertaining to the pulmonary artery of the heart.
The Effects of Carbon Monoxide
Information and resources pertaining to carbon monoxide poisoning.
Information and resources pertaining to carbon monoxide poisoning.
Unusual Plants
Discover some interesting and unusual plants.
Discover some interesting and unusual plants.
Heterozygous
Definition of the word heterozygous.
Definition of the word heterozygous.
Fascinating Animal Facts
Discover wondrous and fascinating facts about animals.
Discover wondrous and fascinating facts about animals.
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
Biology Questions
Get answers to frequently asked biology related questions.
Get answers to frequently asked biology related questions.
Anatomy of the Brain - Occipital Lobes
Information and resources pertaining to the occipital lobes
Information and resources pertaining to the occipital lobes
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.
Cardiovascular Quiz
Take the Cardiovascular System Quiz!
Take the Cardiovascular System Quiz!
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.
Mendel's Law of Segregation - A Genetics Definition
Definition of Mendel's law of segregation.
Definition of Mendel's law of segregation.
Anatomy of the Brain - Divisions of the Brain - Diencephalon
Information and resources pertaining to the diencephalon
Information and resources pertaining to the diencephalon
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.
Top Ten Biology Science Fair Project Books
The top ten biology science fair project books.
The top ten biology science fair project books.
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.
Did You Know? - The Human Body
Discover interesting facts about the human body.
Discover interesting facts about the human body.
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.
Pericardium
Information and resources pertaining to the pericardium of the human heart.
Information and resources pertaining to the pericardium of the human heart.
Taxonomy
Taxonomy is a hierarchical system for classifying and identifying organisms.
Taxonomy is a hierarchical system for classifying and identifying organisms.
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.
Journey into the Cell: Ribosomes
Explore the structure and function of eukaryotic ribosomes.
Explore the structure and function of eukaryotic ribosomes.
Centrioles
Information and resources pertaining to centrioles and cell division.
Information and resources pertaining to centrioles and cell division.
Anatomy of the Brain - Thalamus Images
Images of the thalymus.
Images of the thalymus.
Science Fair Projects
Need help with science fair projects? Find suggestions and tips on how to make your science fair project a winner!
Need help with science fair projects? Find suggestions and tips on how to make your science fair project a winner!
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 - Divisions of the Brain - Prosencephalon
Information and resources pertaining to the prosencephalon
Information and resources pertaining to the prosencephalon
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.
Prefixes and Suffixes: -penia
A definition of the suffix (-penia), from your About Guide to Biology.
A definition of the suffix (-penia), from your About Guide to Biology.
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.
Nervous Tissue
A look at the structure and function of nervous tissue.
A look at the structure and function of nervous tissue.
Macromolecules
A look at macromolecules and molecular diversity.
A look at macromolecules and molecular diversity.
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.
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.
Organ Systems Quiz
Take the Organ Systems Quiz!
Take the Organ Systems Quiz!
Who Wants to be a Biology Whiz? - The trivia game.
Are you a Biology Whiz? Take the quiz to find out!
Are you a Biology Whiz? Take the quiz to find out!
Cardiac Conduction
Information and resources pertaining to cardiac conduction.
Information and resources pertaining to cardiac conduction.
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.
Anatomy of the Heart
Information and resources pertaining to the human heart.
Information and resources pertaining to the human heart.
Anatomical Directional Terms - Anterior
Directional terms for anatomy
Directional terms for anatomy
Anatomy of the Brain - Substantia Nigra
Information and resources pertaining to the substantia nigra
Information and resources pertaining to the substantia nigra
Ventricles
Information and resources pertaining to the ventricles of the heart.
Information and resources pertaining to the ventricles of the heart.
Interphase
Onion root tip image in interphase of mitosis.
Onion root tip image in interphase of mitosis.
Temperate Grasslands
Temperate grasslands are savanna-like areas located in cold climate regions.
Temperate grasslands are savanna-like areas located in cold climate regions.
Architecture of the Liver
Information on the anatomy of the liver and biliary tract.
Information on the anatomy of the liver and biliary tract.
Tunica Adventitia
Information and resources pertaining to blood vessels.
Information and resources pertaining to blood vessels.
Anatomy of the Brain - Corpus Callosum
Information and resources pertaining to the corpus callosum.
Information and resources pertaining to the corpus callosum.
Bio-Word Dissections
Biology can be filled with words that sometimes seem incomprehensible. By dissecting these words into discrete units, even the most complex terms can be understood.
Biology can be filled with words that sometimes seem incomprehensible. By dissecting these words into discrete units, even the most complex terms can be understood.