How photosynthesis works
By: C Song
The term 'photosynthesis' is taught simply to young children as something that happens in a plant when there is sunshine that makes energy. As children progress through their school years, you can see their intellectual progress just by asking, "What is photosynthesis?" Their answers...
What are the differences structurally between a plant and animal cell?
By: C Song
Eukaryotic plant and animal cells have some similarities and marked differences in structure that are key to understanding life; Every organism does occurs fundamentally because of functions at a cellular level. If you have ever observed plant cells and animal cells under a microscope, you...
By: Alison Bowler
Campylobacter jejuni is a highly motile, spiral shaped, gram-negative staining bacterium. Many birds carry the organism and it does not appear to cause any infection in avian species. Campylobacter is the most common cause of food poisoning in the developed world. Most of the cases...
The interactions between Helicobacter, Campylobacter and the immune system
By: Dinah Loa
The interactions between Helicobacter, Campylobacter and the immune system Introduction Campylobacters are a group of bacteria that are the most common cause of diarrhea worldwide. Under this group is the Helicobacter group of bacteria that causes peptic ulcer disease and gastritis. Among the campylobacters that...
Why are angiosperms important?
By: Brinda Junkere
The basic definition for angiosperms is that they are flowering plants. Angiosperms produce a seed or seeds enclosed by a fruit. They also have roots, stems, leaves and flowers. Angiosperms are the biggest group in the animal kingdom. This includes all agricultural crops (corn...
Why are gymnosperms different than angiosperms?
By: Anita Galves
To explain why gymnosperms are different than angiosperms, we need to describe each group first. Angiosperms are the largest group of plants in the plant kingdom. They are known as the flowering plants and consist of 250,000 species. The name angiosperm is Greek...
By: Nicole Nehme
Originally marketed as "The first kitchen garden appliance", The Aerogarden is not really thought of as a learning tool. I think of it as a mini garden lab. You will be growing plants from seed in a very controlled environment. The sun (lights) will come...
The debate on Darwin's theory of evolution
By: Tami Port MS
Those who still dispute the existence of biological evolution sometimes use the argument that it is "just a theory", implying that even scientists don't agree that evolution occurs. Those employing this argument do not have a clear understanding both of how scientific investigation and evolution...
Save a tree's life: Don't peel bark
By: Frances Stanford
The bark of a tree serves an important purpose in the life of a tree. It is the outer covering and protects it from the elements in much the same way as skin does for humans and animals. Many people are surprised to learn that...
By: Sammy Stein
Not all plants are flowering ones although these by far are the largest group. Within flowering plants, there are two disctinct divisions, the gymnosperms and the angiosperms. The names mean naked seed and enclosed seed respectively. Gymnosperms produce seeds which are not enclosed in part...

 

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