By studying the population over an extended period of time, scientists can discover the change in number of population and its growth.
Florida panther population is listed as endangered, but it is estimated that the number is recovering. The population had grown from about 25 adults in 1995 to roughly 100 in 2010. The updated estimates from the 2017. calculated the number between 120 – 230 panthers which is still not a sustainable population size.
 
        
             
        
        
        
An acid; because anything below the number 7 i considered acid while numbers above 7 is base
        
             
        
        
        
A toxin or other foreign substance which induces an immune response in the body, especially the production of antibodies.
        
             
        
        
        
Answer:
mantle
Explanation:
A mantle is a layer inside a planetary body bounded below by a core and above by a crust. Mantles are made of rock or ices, and are generally the largest and most massive layer of the planetary body. Mantles are characteristic of planetary bodies that have undergone differentiation by density. All terrestrial planets (including Earth), a number of asteroids, and some planetary moons have mantles.
 
        
             
        
        
        
The Tower Karst <span>represents the most advanced stage of erosion.</span>