How can you use your ears to help you find where a sound is coming from? please guys, tell me in short​

Your brain is able to do this by comparing tiny differences in the way that sounds affect each ear. A noise coming from the right is slightly louder in your right ear, and reaches it fractionally earlier than your left. A sound in front or behind affects each ear the same way, with intermediate effects in-between. The brain uses these differences, even as small as a 100,000th of a second, to calculate where the sound is coming from. Signals from the ear travel along the auditory nerve to the brainstem, where each individual cell responds to a specific time difference and direction. Until recently it was assumed that a delay was imposed somewhere between the ears and the brainstem, but it has now been discovered that all of the calculations are done in the brainstem cells, which then signal the result to other parts of the brain – enabling you to hear the sound and  know, without thinking, just where it’s coming from.HOPE IT HELPS !!!

q: compare the parts of a cell and the cell as a whole to another common nonliving system (i.e., a car, a city,

a:

comparing this to the inside of a food building/company.

plasma membrane - building's walls

all cells are surrounded by a plasma membrane, which protects the cell from its environment, keeping toxic substances out of the cell. it regulates which molecules are allowed to enter and exit the cell.

nucleus - the big boss

regulates all cell activity such as cellular metabolism, and growth in addition to storing and maintaining the cell's dna for transcription and replication. determines what proteins to make.

cytoplasm - working areas

contains the organelles; site of most cell activity

endoplasmic reticulum - engineer's work area

the place where ribosomes do their working activity.

ribosomes - engineers

builds the proteins.

golgi apparatus - pickup truck drivers

prepares proteins for use or export.

lysosomes -   investigators

responsible for breaking down and absorbing materials taken in by the cell.

cytoskeleton - renovators

maintains cell shape.

mitochondria/chloroplasts - materials scientist

transforms one form of energy into another.