The answer Is B A new Species is forming
 
        
             
        
        
        
Answer:
P wave and R wave 
Atrial contraction = P wave
Ventricular contraction = R wave
Explanation:
The behavior of the frog heart from force recording  can be classified into ; P wave and R wave.
utilizing the ECG ( Electrocardiogram) data the aspect of the force recording that is due to atrial contractions is the ; P wave while the force recording that is due to ventricular contractions is the ; R wave  the ventricular contractions is also known as QRS 
ECG is used to record the electrical activities of a heart at rest
 
        
             
        
        
        
Answer:
im guessing we eat everything but don't get eaten
Explanation:
 
        
                    
             
        
        
        
Answer:
Meteorological observatory of the Pio College (observatorio meterorologico del colegio pio) was started in the 7 May 1982. This network station mainly covers the area of 30th degree of southern latitude with the tips of Atlantic ocean.
The  montevideo residents are glad about its reopening because this station has the ability to recognize the dangerous storms. The early warning signs are generated about the storms that might affect the near by area of the locality.   
 
        
             
        
        
        
The correct answer is a - Lipid
Lipids are not considered as macromolecules because unlike proteins, carbohydrates and nucleic acids which polymers, lipids are composed of a single unit made up a glycerol backbone to which two or three fatty acids are linked.
Lipids are not polymers made up of individual subunits called monomers. They contain only  one molecule and are not macromolecuels.
Examples of lipids include waxes, steroids, phospholipids and detergents. Lipids are generally hydrophobic and insoluble in water.