Answer:
D) energy from the sun, air, and water
Explanation:
Plants are producers because they undergo photosynthesis. Photosynthesis is the process of taking sunlight, CO2, and water to produce ATP in the form of glucose and oxygen. 
For plants to make their own food they require the reactants of photosynthesis. The reactants are sunlight+ . In other words, sunlight, carbon dioxide (air), and water. Without these reactants, photosynthesis cannot occur.
. In other words, sunlight, carbon dioxide (air), and water. Without these reactants, photosynthesis cannot occur. 
Things such as soil and fertilizer are helpful to a plant's growth; however, they are not required in the process that creates food for plants.
 
        
                    
             
        
        
        
Answer:
The study of fish is called Ichthyology.
Explanation:
Fish specimens are identified in the field by ichthyologists. Ichthyology is the field of study that deals with fishes. Taxonomy (classification and the description of new species) and biogeography are the two main areas of focus for museum ichthyologists (patterns of distribution).
Ichthyology is the field of study that deals with fishes. Taxonomy (classification and the description of new species) and biogeography are the two main areas of focus for museum ichthyologists (patterns of distribution). Large reference collections of preserved specimens are kept in museums as a permanent resource for present-day researchers as well as for future ones.
See the attachment for a visual.
 
        
                    
             
        
        
        
Answer:
200=x
Explanation:
 In this equation,it shows 8x=1600 so you would bring the 8 under the x and leave the x and then put it under the 1600 to divide it like a fraction and get 200.I hope this helps:) Have a wonderful day!
 
        
                    
             
        
        
        
Intrasexual selection
Intrasexual Selection is when
members of the same sex within a species contend emulously with each other in
order to acquire chances to mate with others such as the male against male
competition for females. This type of selection often involves posturing and
fighting. Species or individuals suitable for intrasexual selection will possess
developed better weapons than their competitors.