Answer:
It could be a start of acme or maybe a pimple or something else. Can't really tell you what it is but it might go away. :D
Answer:
a. Acne rosacea is a result of an infection and can be treated with antibiotics, while vulgaris is not caused by an infection
Answer:
Explanation: glutamate and glycine (or D-serine) bind to it, and when activated it allows positively charged ions to flow through the cell membrane. The NMDA receptor is very important for controlling synaptic plasticity and memory function. The NMDAR is a specific type of ionotropic glutamate receptor.
