First of all, what is a hotspot?
A hotspot, is a place with a hotter temperature in relation to its surroundings. 
So, when we think of "biodiversity hotspot", what exactly does that mean? 
It's a place with a higher biodiversity in relation to its surroundings, but also with more concentration of species.
So, that's why forests are considered a biodiversity hotspot. If you want some visual content, try finding a geographical map of Africa. In some desert regions you'll see green spots (some really big). These are forests. The interesting thing about them, is when you search their biodiversity, you'll see what a biodiversity hotspot looks like
Hope it helped,
BioTeacher101
 
        
             
        
        
        
Answer: validity of data, claims, hypotheses, and observations
Explanation:
 
        
                    
             
        
        
        
A Pinocytic vesicle is a structure which helps in the Pinocytic process, where the small particles are bought into the cell, forming an infolding or invagination which in turn are suspended in the small vesicles. This process is also known as Cell Drinking.
        
                    
             
        
        
        
Cellular respiration and photosynthesis are important parts of the carbon cycle. The carbon cycle is the pathways through which carbon is recycled in the biosphere. While cellular respiration releases carbon dioxide into the environment, photosynthesis pulls carbon dioxide out of the atmosphere. The exchange of carbon dioxide and oxygen during photosynthesis (Figure below) and cellular respiration worldwide helps to keep atmospheric oxygen and carbon dioxide at stable levels.