Threats to Native Wildlife. Invasive species cause harm to wildlife in many ways. When a new and aggressive species is introduced into an ecosystem, it may not have any natural predators or controls. ... Invasive species can also alter the abundance or diversity of species that are important habitat for native wildlife.
 
        
             
        
        
        
The sensory receptors refer to the portions of the nervous system, which sense variations in the external or internal surroundings. The sensory input can be in various forms, comprising taste, pressure, light, sound, pH of blood, or levels of hormones, which are transformed into a signal and are transmitted to the brain or spinal cord.  
In the sensory centers of the brain, the barrage of information is integrated and a response is produced. The response, that is, a motor output refers to a signal conducted towards organs via motor neurons, which then transforms the signal into some kind of action, like changes in heart rate, movement, discharge of hormones, and others.  
 
        
                    
             
        
        
        
A little percent of it (around 9.5%)  goes to recycling while a large percent goes to the landfill, ocean and beaches, where it will take years for the plastic to decompose and leak pollutants into the soil and water, <span>threatening the health and safety of marine life.  There is a new recycling method where the plastics are shredded and mix with the other components to make hollow blocks for construction of structures.</span>
        
             
        
        
        
The answer is 3 because plants absorb and use CO2, sunlight, and water to create glucose and expel leftover oxygen in the form O2.