Answer:
All the statements are true except the second i. e. the soil quality in an ecosystem Does not matter as much as soil quantity. 
Explanation:
In an ecosystem both quality and quantity of water is very important. If the quality of water is not suitable, that it contains polluted substances so the health of the organism such as fishes and other aquatic animals will adversely affected and sometimes dealth occurs and the ecosystem will be negatively affected. 
 
        
             
        
        
        
This is because the water is dew.  
Maybe we should probably check how that what gets to the ground in the morning. At the point when the surface of a question winds up plainly colder because of sending its idle warmth out, the current dampness in the air contracts among itself.
        
             
        
        
        
Answer:
a) 28 cases
b)  3 cases
Explanation:
a) From the table of genetic codes, there are 28 codons that specify more than one amino acid assuming only the first two nucleotides are considered. In these cases, one cannot outrightly specify the amino acid the genetic codes are coding for without knowing the last nucleotide of the codes. <em>For example, UU can be for Phenylalanine or Leucine, CA can be for Histidine or Glutamine, etc. </em>
b) From the table of genetic codes, the first two nucleotides of Arginine can be either of CG or AG, that of Serine can be either of UC or AG while that Leucine can be either of CU or UU. Only in these <u>3 cases</u> would one fail to know which are the first two nucleotides assuming the name of the amino acids are given.
<em>See the attached image for the genetic code.</em>
 
        
             
        
        
        
Adrenaline, Cortisol, Norepinephrine.
        
             
        
        
        
Biological structures like DNA, proteins and cells all depend on molecules. ... Neurotransmitters like epinephrine are pretty simple molecules, but without them our nervous system couldn't work. Oxygen, containing just two oxygen atoms, is a very simple molecule, and it is certainly essential to living things.