Toxicology is the study of toxin effects on human health. The individuals or professionals who carry out toxicology are called toxicologists. In toxicity testing, the dose of a chemical above which there is a measurable decline in the health of the organism being tested is referred to as the toxicity threshold. After identifying the effects and the toxins in the body of an organisms toxicologists device ways of removing or neutralizing the toxin so as to avoid any damaging effects to the body tissues.
I can’t see the picture but it would be gravity going down
When the action potential reaches<span> the </span>axon<span> ending, it causes another ion (calcium, Ca++) to enter the cell, which in turn causes the vesicles -- the tiny bubbles full of neurotransmitters -- to release their contents into the synaptic gap</span>
The biology theme wherein the example given above represents the concept of homeostatic equilibrium. Homeostatic equilibrium or otherwise known as homeostasis is clearly depicted in the situation because it cites on how the stomatas regulate the gases on the plant leaf in order to maintain stability.
It would be A IV,II,I,III
