Pregnenolone is produced from cholesterol and is a precursor to other steroid hormones, including progesterone, estrogen, testosterone, and DHEA. Pregnenolone levels decline with age, and a deficiency can lead to anxiety, mood imbalances, greater perceived stress, and poor cognitive function.
Answer:
Passive immunity is the transfer of active humoral immunity of ready-made antibodies. Active immunity refers to the process of exposing the body to an antigen to generate an adaptive immune response.
Explanation:
Its due to the fact of the acid in the stomach sometimes when digesting food you can hear certain noises of different chemical interactions happening down below, because all that has to happen for the nosie to get to your ears is vibarte through the bones and the body itself to your ear receptors which your brain processes into noises making you think that you just heard your stomach talk or something xD.
Enjoy!=)
Air pollution, do you have options?
Answer:
eye exam, dental exam, bacteria, floss
Explanation: