Cocaine induces a sense of exhilaration by increasing the availability of dopamine and serotonin in synapses. Cocaine is among the powerful stimulants which increase the release of neurotransmitters such as nor-epinephrine, dopamine and serotonin, that affect CNS and PNS activity. Cocaine administration constricts blood vessels that are absorbing it, son snorting it is a slow way to deliver it to blood stream and eventually the brain.
The answer is; pioneer species
These pioneer species have adaptations such as minute roots that enable them to grow on rocks, with little nutrients, and need no soil. This is why they are able to colonize new barren land. They are able to break down rocks to soil and give an opportunity for higher plants to later colonize the environment after time.
C. Sustainable energy is energy who’s source is renewable
Answer:
When something goes wrong with the sinoatrial node, you may develop a consistently slow heartbeat (sinus bradycardia) or the normal pacemaker activity may stop entirely (sinus arrest). If sinus arrest occurs, usually another area of the heart takes over pacemaker activity. This area is called an escape pacemaker.
Explanation:
Happy to assist! If you have any questions or comments, plz comment in the boxes below! Have a wonderful day!!!!!!
-Mackie
