Answer:
Grass is the primary producer in ecological system
 
        
             
        
        
        
Answer:
Topology is the branch-like structure of the cladogram or tree of evolution. It shows the relatedness among different taxa of the taxonomy. It has significance in the biological evolutionary studies. It shows similarities in the genotype and phenotype of the organisms.
Branch lengths are also important to the phylogenetic studies as it is proportional to the evolutionary time or change to the particular event so the branch length helps in analyzing the number of changes that have taken place in the DNA sequence of a particular lineage.
 
        
             
        
        
        
you chew your food. breaking it down.
 
        
             
        
        
        
Answer:
d) seborrhea, a disease characterized by red, itchy lesions on the scalp.
Explanation:
Sebaceous gland are the glands which are usually present beneath the skin and with the hair follicles. They are also known as oil-producing glands as they released sebum.  
If the sebaceous gland becomes too active and secrete extra sebum than it can cause a condition called Seborrhoea. In Seborrhoea microbe  like Malassezia fungi species colonizes the area where sebum is produced and initiates local inflammatory response which causes scaly patches,  itchy lesions, and red skin. So the correct answer is d.