Answer:
prevent excessive loss of water
Explanation:
The epidermis is a single layer of cells covering all plant organs. The epidermal cells are elongated in the direction of stem length and flattened. They have no chloroplast and their outer walls are covered by a waxy cuticle that prevents excessive loss of water through evaporation. The cuticle also protects the inner tissues from infection and mechanical injury.
The scientist is examining a disaccharide molecule.
Disaccharide is a form of sugar or carbohydrates or is an organic molecule that contains two simple sugars linked together. Like monosaccharides, disaccharides are the sugars soluble in water. Maltose, lactose, and sucrose are some examples.
Monosaccharides are joined to form disaccharide sugars through a condensation reaction, which requires the removal of a water molecule from the functional groups. A type of enzyme called a disaccharidase is used in the process of hydrolysis to separate a double sugar into its two monosaccharides.
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Answer:
Mechanical weathering breaks rocks into smaller pieces without changing their composition. Ice wedging and abrasion are two important processes of mechanical weathering. Chemical weathering breaks down rocks by forming new minerals that are stable at the Earth's surface.
Catalysts increases the rate of a reaction by lowering the need for a larger reaction. Basically, the more reactions that are created, the faster the rate of the reactions will become. An example of this is Amylase in our saliva.