Answer - It will allow the molecules move against the concentration gradient which is pretty much acting against it. (Low concentration gradient TO high concentration)
Reason - It will use energy. For example in a river theres a down flow but if you want to get up top of the river you must go against it by going against the current. Pretty much the same thing but its happening with the cell in a active mode.
The short term human induced environmental changes are pollution and deforestation.
The term deforestation can be defined as the cutting down of trees in huge amount. The reason can be cutting down of trees for human settlement.
Pollution can be defined as the undesirable in the environment. This can be soil pollution, air pollution, land pollution, noise pollution or water pollution.
The effects of these two human induced environmental changes is short term.
The ear cavity (which is affected in infectious otitis) is connected by a duct (the Eustachian tube) to the nasopharynx located behind the nasal fossae.
Otitis is related to a bacterial or viral infection, which most often contaminating the middle ear as a result of rhino-sinusitis or rhino-pharyngitis by borrowing the Eustachian tube or vice versa (otitis media evolving towards a pharyngitis).
Answer:
50 marines died between 2001-2005