In the light dependent
photosynthetic reactions, light energy is converted into chemical energy, which
is stored in molecules like ATP. Then, in the
light independent
photosynthetic reactions, this energy is used to convert CO2 into sugar.
 The answer is letter A) chemical; sugars<span> </span>
 
        
             
        
        
        
... a Y chromosome from the father.
        
             
        
        
        
2. If i were a forensic scientistand was called to a crime scene to see if drugs were present in the crime scene iwould use different kind of test to help me determine this, like for examplespectrophotometry tests, Microcrystalline test, and Color test. Because all of these<span>tests would help me to determine if drugs were to be present in the crime scene</span>3.It's important forscientist to have as much information as possible about the place that the drugsubstance is found because many factors can contribute when identifying a type ofdrug and because there might of have been some other substances with the drugand this could affect identifying the drug substance
        
             
        
        
        
Answer:
1.  to carry oxygen from the lungs to the body tissues 
2. seven (7) or (4)
3.Humans can't live without blood body's organs couldn't get the oxygen and nutrients they need to survive, 
Explanation:
 
        
             
        
        
        
Answer:
here.
Explanation:
Due to the prevalence of malaria in Africa, the allele for sickle cell anemia (HbS) provides a selective advantage. That's why it remains in the population. 
A normal African person (HbAHbA), with normal haemoglobin, will not die of anemia, but will die of malaria. 
An African person with sickle cell anemia (HbSHbS), with abnormal haemoglobin, will die of anemia.
A heterozygous African person (HbAHbS), with half of his red blood cells (RBCs) being normal and the other half being sickle-shaped, will neither die from anemia, nor malaria since the plasmodium will be incapable of completing its life cycle in the abnormal RBCs.
Thus heterozygous African people will grow, reproduce and pass on the HbS allele to the next generations.