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How families can waste less food (The Washington...

How families can waste less food     Jenna Knauss, a 35-year-old mother of twin 9-year-old girls, says she came up with “every excuse in the book” when trying to reduce household waste. “I think I can speak for most parents when I say that my biggest fear was adding one more thing to our […]

THE SHAPE OF LEAVES

What is a leaf?   A leaf is the main organ attached to the stem.  It is specialized for photosynthesis. Over time, it has evolved into a plethora of different shapes, sizes and characteristics. These vary considerably depending largely on their adaptation to climate. Leaves have also adapted to the available sunlight, presence of grazing […]

BARK !

Introduction   Bark is the outermost layer of tissue on a mature plant. It is made mostly of dead rectangular cork cells that fit tightly together.  It is pretty much watertight! The bark on trees and shrubs is as distinctive and individual as the species that produce them.  Not surprising, there is a large variation […]

WHAT A WASTE !

Introduction   There are many steps in the metabolism of plants.  These come mainly from photosynthesis and energy production. All these steps require an endless supply of substances available in the cell for them to work properly.  Chemicals like proteins, acids, bases, and other molecular compounds. The total involved substances directly or indirectly in these […]

 
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