Answer:
 Biotic community
Explanation:
Definition of biotic :living organisms in the ecosystem .Example Frog,fish,and etc.
Definition of Abiotic: Nonliving things in the ecosystem. Examples wind,water,and etc.
 
        
             
        
        
        
Answer:
The Sun, like most stars in the Universe, is on the main sequence stage of its life, during which nuclear fusion reactions in its core fuse hydrogen into helium. Every second, 600 million tons of matter are converted into neutrinos, solar radiation, and roughly 4 x 1027 Watts of energy
Explanation:
 
        
             
        
        
        
Answer:
A vascular plant is any one of a number of plants with specialized vascular tissue. The two types of vascular tissue, xylem and phloem, are responsible for moving water, minerals, and the products of photosynthesis throughout the plant. As opposed to a non-vascular plant, a vascular plant can grow much larger.
Explanation:
 
        
             
        
        
        
D. Proteins help control substances by making trans-membrane channels.