<span>Energy must constantly flow through an ecosystem for the system to remain stable.</span> it means that organisms must eat other organisms
        
                    
             
        
        
        
Answer: The answer is A, organs produce hormones that change a child's body into an adult.
Explanation: The endocrine system is responsible for regulating a range of bodily functions through the release of hormones.
Hormones are secreted by the glands of the endocrine system, traveling through the bloodstream to various organs and tissues in the body. The hormones then tell these organs and tissues what to do or how to function.
 
        
             
        
        
        
<span>Well, there are five layers in the Earth's Atmosphere: 
 (In order from the inside out) 
 1) Troposphere 
 - This is where weather occurs. 
 2) Stratosphere 
 - This is the layer where jets fly, this is where jet-streams are found 
 3) Mesosphere 
 - Meso ("Middle") named because it is in the middle. This is where meteros burn up in the atmosphere. 
 4) Thermosphere 
 - Thermo ("Heat") Names because it is the hottest layer in the atmosphere. This is where the aurora borealis, or northern lights occur. 
 5) Exosphere 
 - Exo ("Outer") This is the outmost layer and it is where the atmosphere merges with outer space.</span>
        
             
        
        
        
A karyotype is a picture in which the chromosomes of a cell
have been stained so that the banding patterns of the chromosomes appear. This
way it is possible to view abnormalities in the chromosomes. Disorders such as aneuploidy can be diagnosed by karyotype.
It can also help identify local abnormalities on chromosomes such as abnormalities
in chromosome length,  and location of the
centromere. 
 
        
             
        
        
        
Answer:
B)Photosynthesis releases oxygen into the atmosphere while aerobic respiration removes oxygen from the atmosphere.	
Explanation:
Only option B satisfies the answer to the question. 
We know that photosynthesis is the process whereby green plants manufacture their foods in the presence of carbon dioxide and sunlight. Carbondioxie in the environment is used to manufacture food in plants. The bye product of photosynthesis is oxygen gas. Oxygen gas is used for aerobic respiration in animals and is essential for their life. This way photosynthesis adds to the pool of oxygen in the atmosphere and aerobic respiration removes from the pool.