We can conserve resources by recycling objects that are able to be recycled like, plastic water bottles and paper. We can also purchase reusable products, such as a reusable water bottle, or we can write on both sides of our paper instead of one. We can also reduce, by buying and using less stuff.
        
             
        
        
        
B. Adolescents need more calories and nutrients, especially if they are very inactive.
        
                    
             
        
        
        
Answer:
carbon dioxide passes from the blood into the alveoli and is then exhaled. Oxygenated blood travels from the lungs through the pulmonary veins and the cycle goes on every time you breath or inhale you inhale oxygen into your blood cells. 
Explanation:
 
        
                    
             
        
        
        
Answer:
Option (e).
Explanation:
Nervous system is one of the most important systems of the organism that helps them to respond them towards the environment. The nervous system includes the brain, spinal cord and all the neurons.
Nervous system is present in highly complex organism and increases in complexity in case of higher animals. Lower animals do not have nervous system but still they respond to their environment with the help of chemical and receptor. Hence, all the animals have the ability to respond towards the environment.
Thus, the answer is option (e).
 
        
             
        
        
        
B: Motivation can be seen through goals.
I hope this helps you, and please don't forget to say thanks and give brainliest! It really helps out!