Hydrophobic molecules are water hating. They repel or fail to mix with water. Also called nonpolar molecules, examples include alkanes, oils, fats, and greasy substances. Hydrophobic materials can be used to help clean up oil spills.
Territorial behavior is a method that animals use to protect its territory from incursions by others or its species. It is marked by the sounds of song birds or scents. A dog marking its territory by peeing on something is an example of territorial behavior. Pictured is a spiders web, not all spider are territorial but in some species they are. An Australian funnel web spider has been known to attack humans that get too close to their lair or web, making them territorial.
The modified leaf of a plant is a n adaptation on a plant meant for its own survival due to environmental stress. A leaf performing functions other than transpiration and photosynthesis is an example. Other things include structure changes like color and spikes. An onion is special in the case that its center contains a modified root but most of what we eat on the outside are modified underground leaves that store energy for the plant to survive during the winter.
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