An ecological hot spot is an area where <span>many species are at high risk of extinction due to primarily human activity. Habitat loss is rampant and also leading to habitat extinction. Human habitats tend to coincide or intervene with species habitats in such a way that about </span><span>20% of people all over the world live within </span><span>ecological hotspots.</span>
It would be the study of the tissues of plants and animals using a microscope.
Homeostasis is the state of getting the entire body back to stable equilibrium while respiration is just the act of breathing which is a type of homeostasis