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Permeability
Permeability Definition What is permeability? In earth science, its definition is this: "the ability of any material such... Read More
Chromosomal mutation
Every living thing is made up of DNA. Our DNA is what makes us unique and different in the world. Our DNA is made up of... Read More
Genetic material
Genetic Material Definition What is genetic material? Genetic material is the hereditary substance in the cell. It carries... Read More
Muscular system
Muscular System Definition What is the muscular system? The muscular system is a system that includes muscle cells and... Read More
Environment
Environment Definition What does environment mean? If you mean physical environment, then it is defined as the surrounding... Read More
Silent mutation
A mutation is a change in the nucleotide sequence of a gene or a chromosome. When there is only one nucleotide involved, it... Read More
Fibroblast
The building block of living things is known as the cell. The cell contributes to many parts and functions of different... Read More
Nucleotide
Nucleotide Definition A nucleotide is regarded as the basic building block of nucleic acid (e.g. DNA and RNA). A nucleic... Read More
Prophase I
Organisms all use mitosis to create more cells in the body. Meiosis, a similar process, is used in some organisms to undergo... Read More
Obligate parasite
Parasitism is a form of symbiosis that occurs between a parasite and its host. The parasite is the organism that generally... Read More
Saccharide
Saccharide Definition What is a saccharide molecule? A saccharide is the unit structure of carbohydrates. In biochemistry,... Read More
Parasitism
Organisms depend on different sources of food to survive. Larger organisms like plants make their own food (autotrophs) and... Read More
Single-stranded DNA
What is single-stranded DNA? DNA is the material that living organisms possess that carries their genetic make-up. DNA and... Read More
Reproductive system
What is the Reproductive System? The reproductive system of an organism is the biological system made up of all the... Read More
Convoluted
The word convoluted is often used to describe different things, especially structures or components, that have overlapped.... Read More
photobiology
Photobiology Definition Photobiology, the biology of light, is a subdiscipline in biology. It focuses on the effects of... Read More
Anaerobic bacteria
Bacteria are classified according to the need for oxygen to survive and grow. For example, aerobic bacteria are bacteria... Read More
Biology: Concepts & Connections with Student CD-ROM (5th Edition)
Biology: Concepts & Connections with Student CD-ROM (5th Edition) ... Read More
Branches of biology
What is a Branch of Biology? A branch of biology is a specialized field or a sub-discipline in a much broader field of... Read More
Evolutionary biology
Definition noun The branch of biology concerned with the evolution of organisms, particularly the origin and descent of... Read More
Net primary productivity
In order to keep the biosphere running, different organisms play different roles and functions. Some help in oxygen... Read More
Thermophile
Thermophiles Definition What are thermophiles? Let us first understand the literal meaning of the word ‘thermophile’.... Read More
Ribonucleic acid
Ribonucleic Acid Definition noun (uncountable), ribonucleic acids ri·bo·nu·cle·ic ac·id, raɪboʊnjuːkliːɪk... Read More
Micromolecule
Micromolecules Definition How to define micromolecule? Micromolecules are relatively small molecules that are combined... Read More
Phylogenetics
Phylogenetics Definition Phylogenetics is the scientific study of phylogeny. It studies evolutionary relationships among... Read More
Interspecific competition
Interspecific Competition Definition In Biology, competition is defined as the process that occurs among species that have... Read More
Fibrinous exudate
What Is Fibrinous Exudate? Fibrinous exudate is a type of exudate (inflammatory fluid) that forms at the site of tissue... Read More
Ichthyology
Definition noun A branch of biology concerned primarily with the study of fish Supplement Ichthyology is the scientific... Read More
Molecular neuroscience
Definition noun A branch of neuroscience that studies the nervous system in terms of its molecular biology, molecular... Read More
Plant cell
Plant Cell Definition A plant cell refers to any cell of a plant. It is the structural and functional unit of plants. Plant... Read More
Cell Biology
The cell is defined as the fundamental, functional unit of life. Some organisms are comprised of only one cell whereas... Read More
Plant Meristems and Growth
A common mistake that many people assume is that an increase in size means an increase in growth. This is not the case.... Read More
Neurophysiology
Definition noun A branch of neuroscience that is concerned with the physiology of the nervous system Supplement Neuroscience... Read More
Bolus injection
A bolus injection is the act of administering a dose of medication or substance directly into the bloodstream by injection.... Read More