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Beautiful Huntresses: Scientists Explain Why Mantises Evolved To Resemble Orchids : The Two-Way Typically, when insect females evolve to become larger than males, it's in order to produce more offspring. But female orchid mantises evolved to look like flowers for a sinister reason: to hunt prey.
How this flowers structure relates to its function is by the hight and the sizes of its leafs.
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Pressure decreases with increasing altitude. The pressure at any level in the atmosphere may be interpreted as the total weight of the air above a unit area at any elevation. At higher elevations, there are fewer air molecules above a given surface than a similar surface at lower levels.
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So the egg definitely came first.
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Dinosaurs laid eggs, the fish that first crawled out of the sea laid eggs, and the weird articulated monsters that swam in the warm shallow seas of the Cambrian Period 500 million years ago also laid eggs. They weren't chicken's eggs, but they were still eggs.
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Types of biological macromolecules
Biological macromolecule Building blocks Examples
Lipids Fatty acids and glycerol Fats, phospholipids, waxes, oils, grease, steroids
Proteins Amino acids Keratin (found in hair and nails), hormones, enzymes, antibodies
Nucleic acids Nucleotides DNA, RNA
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