Start by saying Sorry
Hope this helps not sure if i did that right lol
E. All of the above are false.
In most cases, individuals with down syndrome have 47 chromosomes, with three copies of chromosomes 21.
Answer:
see thats because stress is a feeling and feelings are mostly connected to hormones so when you are stressed or feel threatened, your nervous system responds by releasing a flood of stress hormones, including adrenaline and cortisol, which rouse the body for emergency action. Your heart pounds faster, muscles tighten, blood pressure rises, breath quickens, and your senses become sharper.
The answer to this question is the drug "Beta-1 Adrenergic" which is also known as ADRB1. It is a certain drug that affects and decreases the heart rate by simply blocking a receptor on cardiac pacemaker cells. This drug also probably binds to Beta-1 Adrenergic.
the answer would be the worst one a
