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Primary productivity
Planet Earth is home to different types of life forms ranging from microscopic bacteria to giant whales and elephants. To... Read More
Circulation
Blood Blood is composed of a liquid, plasma, and blood cells such as erythrocytes (red blood cells,) leukocytes (white... Read More
Fruits, Flowers, and Seeds
Flowering plants grow in a wide variety of habitats and environments. They can go from germination of a seed to a mature... Read More
Chromoplast
Definition noun, plural: chromoplasts Any of the coloured plastids associated with pigment synthesis and... Read More
Semilunar valve
The human heart structure consists of heart chambers (2 atria and 2 ventricles) that differ functionally from each other.... Read More
Chemotroph
Chemotroph Definition A chemotroph refers to an organism that obtains energy mainly from carbon dioxide and from... Read More
Humans are Omnivores – Evidence
A number of popular myths about vegetarianism sprung with no scientific basis. One example of such a myth is that man is... Read More
Osseous tissue
What Is Bone Or Osseous Tissue? Osseous tissue is the structure providing, hard and mineralized connective tissues. Osseous... Read More
Somaclonal variation
somaclonal variation The variation between individuals in a clone, particularly in plant clones. While the objective is... Read More
Lignification
(Science: botany) a change in the character of a cell wall, by which it becomes harder. It is supposed to be due to an... Read More
Bone tissue
Definition noun, plural: bone tissues A mineralized connective tissue from which bones are made. Supplement The bone tissue... Read More
Moisture content
Definition noun The weight of the water contained in an object or material, usually expressed as a percentage of... Read More
Animal cell culture
Animal cell culture (Science: cell culture) Mammalian cells are fragile and harder to grow than other cell types, but their... Read More
Examples of Natural Selection
Reviewed by: Mary Anne Clark, Ph.D. Darwin's Finches Darwin's finches are an excellent example of the way in... Read More