Answer:
These techniques include x-rays, computed tomography (CT) scans, and magnetic resonance imaging (MRI). These imaging tools let your doctor "see" inside your body to get a "picture" of your bones, organs, muscles, tendons, nerves, and cartilage. This is a way the doctor can determine if there are any abnormalities.
Explanation:
hope it helps :)
 
        
             
        
        
        
The best answer is D, birds.
For more information and details on the way a bird's respiratory system works: 
https://asknature.org/strategy/air-flow-patterns-facilitate-efficient-gas-exchange/
        
                    
             
        
        
        
Answer:
Nervous tissue can generate and conduct <u>electrical</u> signals that control the body.
Explanation:
The neuron is the specialized cell that provides function to nerve tissue. Given the structure of the neuron, this cell is capable of creating and conducting information in the form of electrical impulses or signals, by depolarizing its cell membrane and generating action potentials.
The information generated and transmitted by the neurons allows the nervous system to obtain internal and external information of the organism, as well as to control all the body functions.
<em>     The other options are not true because nerve tissue does not generate or conduct </em><em>thermal </em><em>or</em><em> chemical </em><em>signals to perform its function.</em>
 
        
                    
             
        
        
        
Answer:
At times the virus activity appeared to sediment at a rate comparable with that of particles about 80 to 120 mµ in diameter, at other times at a rate comparable with that of particles about 10 mµ in diameter,
Explanation: