1 3.7.E. Flow of Matter and Energy Skills and Objectives. 1. Explain that the transfer and transformation of matter and energy links organisms to one another and to their physical setting. a. Cite evidence from research and observations that food provides molecules that serve as fuel and building materials for all organisms. b.
A portico entrance provides shelter from the elements and offers the opportunity to embellish an otherwise dull entrance. Adding a portico to the entrance often adds kerb appeal and value to the property.
A door is a moving structure used to block off, and allow access to, an entrance to or within an enclosed space, such as a building or vehicle. Doors normally consist of a panel that swings on hinges on the edge, but there are also doors that slide or spin inside of a space. Similar exterior structures to doors are called gates. Typically, doors have an interior side that faces the inside of a space and an exterior side that faces the outside of that space. In many cases the interior side of a door mostly matches its exterior side, but in some other cases there are sharp contrasts between the two sides, such as in the case of the vehicle door. When open, doors admit people, animals, ventilation or light. The door is used to control the physical atmosphere within a space by enclosing the air drafts, so that interiors may be more effectively heated or cooled. Doors are significant in preventing the spread of fire.