Trees of Australia: Tasmanian Blue Gum
By: Judy Evans
Eucalyptus globulus or Tasmanian Blue Gum belongs to the plant family Myrtaceae or myrtles. A French explorer, Jacques-Julien Houton de Labillardiere first described the tree in 1799. Eucalytus is derived from the Greek words ‘eu’ meaning ‘well’ and ‘kalypto’ ‘to cover&rsquo...
Electron transport chain of cellular respiration
By: Tami Port MS
All living things run on energy. If the organism is a plant or autotrophic microbe, the energy comes from sunlight. For all other forms of life, energy is extracted from nutrients through the reactions of metabolism-cellular respiration.* Cellular Respiration and the Electron Transport Chain...
By: Wendy R.
A cell is a basic structural and functional unit of all living things and is also considered a building block of life itself. Within the cell is found many complex structures known as organelles. These organelles range from simple (in Prokaryotes, such as bacteria) to...
Tips for using a compound light microscope
By: Tami Port MS
When using a compound light microscope (a scope with two sets of lenses) students frequently become discouraged after the object they are trying to view can't be found at all or repeatedly disappears from view every time the scope is switch to a higher objective...
Trees of Australia: Salmon gum
By: Shirley Love
The stately salmon gum tree native to western Australia, can grow in access of seventy feet tall with a diameter of thirty inches or more. The bark is reddish pink in color, hence the name Salmon, but fades to grey in late summer. Its branches...
How to identify parts of a compound microscope
By: Tami Port MS
Before students new to the world of microscopy are able to view microscopic specimens, they have to first learn their way around a microscope. Below are descriptions of the key parts of a compound microscope. * What Is a Compound Light Microscope? *A compound light...
Robert Koch: History of microbiology
By: Tami Port MS
Frustrated by unfulfilled big dreams of high adventure, Robert Koch, a German physician, was destined for smallness, as a pioneer of modern microbiology. Dr. Koch (pronounced 'Coke') was not merely unhappy that his life as a 19th century physician was not action packed; he was...
The basics of the stages of mitosis
By: Rob Gray
Mitosis is the process by which a nucleate cell divides into two genetically identical daughter cells. These product cells are diploid cells, meaning they have the full 46 chromosomes. There is also no genetic difference at all between the daughter cells, unless there is some...
The life span of African elephants
By: D. Vogt
The average lifespan of an African elephant is, put simply, about 60 years. However, to understand why this life expectancy is intriguing, one must delve a little deeper into elephant aging - which is in some ways much stranger and more disturbing than our own...
Life cycle of the big brown bat
By: D. Vogt
The big brown bat (Latin name Eptesicus fuscus) is a relatively large (hence its name) species for a bat, with a wingspan of roughly one foot. Like other bats, it is nocturnal, flies and hunts by navigating with ultrasonic bursts, and survives on a diet...

 

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