Genetic adaptability is very important to the survival and adaptability of any specie. This is because, in a diverse population, the possibility of finding individuals with the right genetic adaptability to the changing environment is higher, the population will have more possible adaptations. 
        
                    
             
        
        
        
the correct answer is A- Reproductive isolation occurred through behavioral isolation
A process of formation of a new species from an existing species is called speciation. New species may formed due to geographical or reproductive barriers which isolates the members of a population of a species to form a new species. 
In the given question, speciation in In the leopard frogs occurred due to a particular or specific call given by males to the females. The courtship call lead to reproductive isolation due to change in behavior. Such type of behavioral change will help in recognizing mates of the same species and this will act as a reproductive barrier among the other related species.
 
        
             
        
        
        
Oxygen in the presence of sunlight
        
             
        
        
        
Some students feel distressed only in test situations. They might be said to suffer from Acute Stress.
Answer: Option B
<u>Explanation:</u>
Stress is your body's reaction to specific circumstances. It's abstract, so something that is distressing for you may not be unpleasant for another person. There is a wide range of sorts of stress and not every one of them is terrible. Stress can enable you to act rapidly in a crisis or help you comply with a time constraint. 
Acute stress is the most widely recognized sort of pressure. It's your body's prompt response to another test, occasion, or request, and it triggers your battle or flight reaction. 
 
        
             
        
        
        
The swim bladder is more or less an oval, soft-walled pouch located in the abdominal cavity, just below the spinal column. Its shape varies greatly, but the volume is constant between species, most often around 5% of body.
<h3>Day of deep-sea fishing</h3>
1. The volume of your swim bladder when you put it back in the water would be 7.5 liters.
2. The time the fish would float on the surface before the oval could restore neutral buoyancy would be a few seconds.
3. If I were a red blood cell that has just delivered its oxygen to the tail musculature of a mako shark, the route through the circulatory system to eventually reach the mako's swim bladder would be the venous route, like other fish, they have a heart with two chambers, an atrium and a ventricle, and closed circulation.
With this information, we can conclude that the volume of her swim bladder when she was put back in the water would be 7.5 liters.
Learn more about swim bladder in brainly.com/question/22849660