Answer:
Active uptake (which I think you mean active transport) is important when the concentration gradient is against that of a certain substance, so it doesn't cross the membrane through diffusion or passive transport. It is sometimes necessary if a substance needs to move across a membrane but can't do so due to electrical charge or that there is a substance on the other side of the membrane preventing diffusion.
Explanation:
The highest between 25 and 50;the lowest between 55 and 74
B) 100 times more acidic :)
Its important because it tells us the difference between populations and individuals
The landmark that is not part of the sphenoid bone is Olfactory foramina
Sphenoid bone is are bone that can be found at the central of the human skull and they are made up of cranial bones which are bones that help to protect the human brain from injury.
Olfactory foramina is not part of sphenoid bone because they are hollow space that is found in the cribriform plate.
This hollow space made it possible for the sensory nerves to pass through the human nasal cavity which in turn help to transport information from the olfactory receptors to the brain.
Inconclusion the landmark that is not part of the sphenoid bone is Olfactory foramina.
Learn more about Olfactory foramina here:
brainly.com/question/18866746
