I am not entirely sure about this. So maybe my response can help you find the answer a little better if my answer is not entirely right? 
These last three questions are referring to everything you just worked on. So all you would have to do is refer back to your previous answers. Recall that the titles of the "part 1, 2, and 3" are titled "crossing beak color and tail-feather length", "crossing beak color and feather color", and "mapping tail-feather length and feather color". 
1.List the distances between each pair of genes: 
beak color and tail-feather length: 20 MU 
beak color and feather color: 16 MU 
tail-feather length and feather color: 4 MU 
2.Which two alleles are the farthest apart? 
(the one that is 20 MU apart) Y and L 
3.Which two alleles are the closest together? 
(the ones that are 4 MU apart) L and B 
        
             
        
        
        
Answer:
vasoconstriction of capillaries. 
baroreceptors in the aortic arch.
Explanation:
Vasoconstriction of capillaries and baroreceptors in the aortic arch are the two quick responses of body to maintain normal blood pressure during hemorrhage. Vasoconstriction is very necessary for lowering acute blood loss during hemorrhage means escape of blood from a ruptured blood vessel as well as maintain body heat and arterial pressure. The function of baroreceptors is to respond to the change in the tension of the arterial wall when blood pressure changes.
 
        
             
        
        
        
Answer:
cus it can add on i think
Explanation:
im a male
 
        
             
        
        
        
Answer:
High quality of seeds.
Explanation:
92% of the seeds in a seed  package will sprout if it has high quality because good quality seeds has the ability to germinate more than those seeds which are not of good quality. If the seed has high quality, it has more than 90% germination rate. If the seeds are infected by some disease or damaged due to mechanical means so these factors also affected the rate of germination.
 
        
             
        
        
        
For a person with blood type A- (A negative),  they can be transfused with either  blood type A negative  , or blood type O negative.
This is because any other blood type will immediately be rejected by their body.
A person with blood type A negative has got antibodies against any other blood type which has a rhesus positive factor as well as antibodies against  any other blood type of a different group such as B and AB, even if they are  rhesus negative.
Therefore because of the rhesus negative factor, a person with blood type A negative  can only be transfused with rhesus negative .