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Book lungs
Book Lungs Definition Lungs are known as the organs that help organisms breathe. When we think of lungs, we think of the... Read More
Petrified Wood : The World of Fossilized Wood, Cones, Ferns, and Cycads
Petrified Wood : The World of Fossilized Wood, Cones, Ferns, and Cycads ... Read More
Robbins & Cotran Pathologic Basis of Disease (7th Ed) by V. Kumar et al.
Robbins & Cotran Pathologic Basis of Disease, Seventh Edition ... Read More
Plant Auxins – Phototropism & Geotropism
As with animals, plants also use a variety of hormones to control their growth and development. A family of hormones called... Read More
Color Atlas & Synopsis of Clinical Dermatology
Color Atlas & Synopsis of Clinical Dermatology ... Read More
Biochemistry & Molecular Biology of Plants
Biochemistry & Molecular Biology of Plants ... Read More
Mendel’s Law & Mendelian Genetics
Reviewed by: Mary Anne Clark, Ph.D. The previous tutorial, Dominance, has described Gregor Mendel’s law of... Read More
Metabolism
Metabolism Definition What is metabolism in the body? Metabolism encompasses the various biochemical processes, reactions,... Read More
Bee Species Outnumber Mammals And Birds Combined
Scientists have discovered that there are more bee species than previously thought. In the first global accounting of bee... Read More
Axon terminal
An axon terminal is any of the button-like endings of axons through which axons make synaptic contacts with other nerve... Read More
Systema Naturae
Definition noun A book of binomial nomenclature introduced by a Swedish botanist, zoologist and physician Carolous... Read More
Non-living thing
Non-living Thing Definition A non-living thing in biology means any form without a life, such as an inanimate body or... Read More
Biology: Concepts & Connections with Student CD-ROM (5th Edition)
Biology: Concepts & Connections with Student CD-ROM (5th Edition) ... 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
Muscular system
Muscular System Definition What is the muscular system? The muscular system is a system that includes muscle cells and... Read More
Thalassophobia
Among many psychological and psychiatric disorders, one is the fear of the ocean and the fear of deep water, which in... Read More
Osmoregulation
Definition noun The process of regulating water potential in order to keep fluid and electrolyte balance within a cell or... Read More
Xanthophyceae
Definition noun A taxonomic class comprised of the xanthophytes (yellow-green algae) Supplement Xanthophyceae is a taxonomic... Read More
Trichuris trichiura
Definition noun Human whipworm species of the family Trichuridae Supplement Whipworms are a group of helminths together with... Read More
Xanthophyte
Definition noun Any of the yellow-green algae comprising the taxonomic class, Xanthophyceae Supplement Xanthophytes, also... Read More
Philippine tarsier
Definition noun, plural: Philippine tarsiers A tarsier species endemic to the islands of the Philippines Supplement Tarsiers... Read More
Sphenodon guntheri
Definition The tuatara species of the genus Sphenodon that inhabits one small island of New Zealand, i.e. Brothers... Read More
Chronobiology
Chronobiology Definition Chronobiology is a branch of biology that studies time-related phenomena (e.g., biological... Read More
The Water Cycle
The water cycle (sometimes referred to as the hydrological cycle) is the continuous transfer of water from air, sea land and... Read More
Freshwater Communities & Lentic Waters
Lentic (still water) communities can vary greatly in appearance, anything from a small temporary puddle to a large lake is... Read More
Hormone Production
Reviewed by: Mary Anne Clark, Ph.D. Hormones are chemical messengers produced by glands in the endocrine system.... Read More
Independent Assortment and Crossing Over
Reviewed by: Mary Anne Clark, Ph.D. The previous tutorial investigates the process of meiosis, where... Read More
Chromosome Mutations
Reviewed by: Mary Anne Clark, Ph.D. By nature, the genetic information from both parents is expected to be seen... Read More
DNA Structure & DNA Replication
Previous pages in this tutorial have described the basics of a cell, the energy required by these cells and how energy is... Read More
Effects of Gravity on Sleep
Gravity is a natural phenomenon that affects all things particularly all living creatures from cell to human being. It has... Read More
Cladosporium species in indoor environments
Cladosporium is a fungus that mostly found in indoor and outdoor molds. It is a species that formed in simple or branching... Read More
Thanatosis – Faking Death To Escape Doom
Thanatosis -- pretending to be dead -- is one of the best strategies that certain wild animals came up with in order to... Read More