Answer:
Explanation:
may not be as dramatic as they were in the past as the situation today does not favour the evolution of a new human species. ... our brains are now the smallest they have been at any time in the past 100,000 years. ... from the hard driving snow typical in these regions, and also to reduce snow glare.
Key system standing for the main system of the body
Answer:
Blood sugar enters your bloodstream, which signals the pancreas to release insulin. Insulin helps blood sugar enter the body's cells so it can be used for energy. (ANSWER)
Explanation:
Blood sugar enters your bloodstream, which signals the pancreas to release insulin. Insulin helps blood sugar enter the body's cells so it can be used for energy. (ANSWER)
Answer: Membrane proteins act as receptors to molecules like hormones.
Explanation:
Membrane proteins are proteins that are closely associated with a cell membrane. On the cell membrane, they could act as receptors to molecules like hormones that need to be transported across the hydrophobic lipid bilayer.
A good example of membrane proteins is sodium channel, that acts as receptor to neurotransmitters.
