Answer: The Answer is D. 
Explanation: Butter consists of butterfat, milk proteins and water, and often added salt. Most frequently made from cow's milk, butter can also be manufactured from the milk of other mammals, including sheep, goats, buffalo, and yaks.
 
        
             
        
        
        
Answer:
Kettlewell thought that if natural selection caused the change in the moth population, the following must be true: Heavily polluted forests will have mostly dark peppered moths. Clean forests will have mostly light peppered moths. Dark moths resting on light trees are more likely than light moths to be eaten by birds.
 
        
             
        
        
        
Answer:
The study of internal structures is called anatomy forexample to study the internal structure of heart
Explanation:
 
        
             
        
        
        
Hey mate!
You stuck?
For a quantity of water, milliliters (mL) are used
For the length of a leaf centimeters or millimeters (cm; mm) are used
For the mass of a small stone, gram (g) are used.
Hope this helps! :)
        
                    
             
        
        
        
The answer is penicillin
Rheumatic fever is a disease that caused by Group A streptococcus infection. The bacteria has component that similar to the heart valve cells, makes the immune cell attack it. The drug of choice for this infection is penicillin G benzathine injection. It is one of penicillin family drug that has high prevalence of allergy reaction, so you must be aware.