Answer: The whole surface of Earth is a series of connected ecosystems. Ecosystems are often connected in a larger biome. Biomes are large sections of land, sea, or atmosphere. Forests, ponds, reefs, and tundra are all types of biomes, for example. They're organized very generally, based on the types of plants and animals that live in them. Within each forest, each pond, each reef, or each section of tundra, you'll find many different ecosystems.
Explanation: Hope this helps :)
 
        
             
        
        
        
Answer:
Explanation:
The things that are changing in an experiment are called variables. A variable is any factor, trait, or condition that can exist in differing amounts or types. An experiment usually has three kinds of variables: independent, dependent, and controlled
 
        
                    
             
        
        
        
Here is the answer that would best complete the given statement above. Biotechnology raises ethical questions, primarily concerning the <span>ways in which knowledge should be used. Hope this is the answer that you are looking for. Have a great day!</span>
        
                    
             
        
        
        
Chromosomes, which are found in the nucleus of a cell, contain genes. A gene is basically a section of DNA, which carries some type of coding for particular protein. The structure in which all genetic information can be found is your DNA (short for D<span>eoxyribonucleic Acid). (I don't know if the first part helped?).</span>
        
                    
             
        
        
        
Answer: A = nucleus, B = plastids , C = ribosomes   , D = cytoplasm
Hope it helps u! pls mark as brainliest!