The correct answer is d. spinal cord.
Spinal cord is a bundle of neurons which starts from the brain and runs down the entire length of the back of the body. The spinal cord acts as a main means to transmit the messages between the brain and the body.
Sensory or efferent neurons carry the information from the perimeter of the body and pass to the central nervous system whereas the motor or efferent neurons act as a communication channel and carry the information from the nervous system to various glands and muscles.
 
        
                    
             
        
        
        
These plants colonize habitats, and exclude the native plants and animals. Since they decrease native biodiversity, they arebad for the environment.
        
                    
             
        
        
        
Question 1:  C.
Question 2: C.
Question 3: D.
Question 4: A.
Question 5: A.
        
                    
             
        
        
        
<span>The hormonal deficiency which causes breast atrophy in women occurs during the normal process of menopause, a developmental stage later in life during which women experience decreased levels of estrogen. This estrogen-based type of reduction is a typical and expected outcome of menopause.</span>
        
                    
             
        
        
        
Answer:
Mass movement causes regolith and rock to move down-slope where sooner or later the loose particles will be picked up by another transporting agent and eventually moved to a site of deposition such as an ocean basin or lake bed