<span>They all use the same process to survive (photosynthesis)Flowers are an important part of the reproductive system of plants. Each flower produces pollen, which is released through the anther part of the stamen.</span>
        
             
        
        
        
I. Each carbon atom can form single bonds with up to four other carbon atoms. II. Each carbon atom can form double bonds with up to two other carbon atoms. III. Carbon atoms can join together to form chains or rings. IV. A single molecule of some compounds can contain thousands of carbon atoms.
Answer:
All the given choices
Explanation:
Carbon is a very interesting element which is the backbone of most organic compounds. 
Organic compounds are made up of carbon. Carbon forms a wide range of compound due to the following properties; 
- An atom of carbon has 4 valence electrons and can bond with 4 other carbon. 
- Carbon can form single, double and triple covalent bonds. 
- They can join together to form rings or chains.
 
        
             
        
        
        
There is only species of a koala but you can ask how many races there are.
The name is, "phascolarctos cinereus".<span />
        
             
        
        
        
NOT EXACT DEFINITION: Diseases that can be passed from one living organism to the other. Two examples are flu and several STIs (such as herpes). Sorry I couldn’t think of any more :)