Answer:
A) the nucleus
Explanation:
The nucleus is in the middle of the cell. And it controls everything and gives directions to help other organelles. 
 
        
             
        
        
        
Answer:
The way organisms compete with each other determines species distributions, population dynamics, community structure, food webs, and social dominance hierarchies. ... These stressors affect the way that organisms compete with each other and their ability to survive and co-exist.
Explanation:
 
        
                    
             
        
        
        
The weak, overgrazed pasture will be particularly vulnerable to interrill, rill, and gully erosion, which can result in the loss of important topsoil, a decrease in soil organic matter, and a drop in the nitrogen pool available to feed your fodder. Compaction of the soil is exacerbated by excessive grazing.
        
             
        
        
        
In plant cells, the chloroplast organelle produces the fuel for the mitochondria. 
- As stated in the question, all living organisms whether prokaryotic or eukaryotic require energy for their metabolic activities. 
FUNCTION OF CHLOROPLAST:
- The chloroplast is an organelle found in plant cells. It is the site of a unique process called PHOTOSYNTHESIS. Photosynthesis is the process by which plant cells obtain their food (glucose) required for production of energy in the mitochondria. 
- The chloroplast houses a pigment called CHLOROPHYLL, which captures light energy for the photosynthetic process. 
- Therefore, plant cells are able to produce the fuel (food) needed for energy production by the mitochondria, with the help of an organelle called CHLOROPLAST. 
Learn more: brainly.com/question/18916518?referrer=searchResults
 
        
             
        
        
        
Answer:
There are two kinds of cellular communication: communication between cells is called intercellular signaling, and communication within a cell is called intracellular signaling. 
Explanation: