Geologic Time Scale.Scientists decide when an era begins<span> and </span>ends<span>, due </span>to<span> mass extinction. ...</span>Scientists determine<span> when drastic changes </span>are<span> made by the fossil record, which shows earths past organisms that have become extinct.</span>
        
             
        
        
        
If the statement is asking whether it is true or false, the
answer is true because eating breakfast and skipping snack before lunch is
considered to be a type of behavior modification in which a behavior
modification focuses to the behavior change is being limited because of the
observation seen or employed. 
 
        
             
        
        
        
Answer:
 I think d . brain must be the ans
 
        
             
        
        
        
Answer:
Un nucleótido es el componente básico de los ácidos nucleicos. ... Un nucleótido consiste en una molécula de azúcar (ribosa en el ARN o desoxirribosa en el ADN) unida a un grupo fosfato y una base que contiene nitrógeno. Las bases utilizadas en el ADN son adenina (A), citosina (C), guanina (G) y timina (T).
Explanation:
 
        
             
        
        
        
Answer: Anconeus muscle
Explanation:
The anconeus is a small muscle found at the elbow. It is Attached to the humerus and ulna (it originates on the lateral epicondyle of the humerus and inserts on the olecranon process and superior portion of the ulna). Anconeus muscle allows the forearm to extend and it also provides support for the dorsal joint capsule and the ulna as well. 
The radial nerve permits the anconeus muscle to carry all of those functions.