Answer:
b. How does food yield energy?
Explanation:
The main question is how energy is produced from food such as carbohydrates, fats and proteins etc. First the carbohydrate is converted into glucose molecule and then glucose is absorbed by the cell and is broken down in the mitochondria of the cell with the addition of oxygen and generate energy in the form of adenine tri phosphate. All the scientists wants to know that how a food is converted into energy.
 
        
             
        
        
        
A dwarf is a recessive trait. In order for the plant to be shorter, it would have to have 2 recessive alleles. The plant is also purebread so it wont contain the tall allele. The gametes that are possible are tt.
        
             
        
        
        
Answer:
the trapping of the sun's warmth in a planet's lower atmosphere, due to the greater transparency of the atmosphere to visible radiation from the sun than to infrared radiation emitted from the planet's surface.
Explanation:
I think it can be incorrect also so refer to Science teacher also. also.
 
        
             
        
        
        
Answer:
Marasmus 
Explanation:
Marasmus is a type of protein deficiency that occurs in children.
Its presents with a shruken look, loss of muscle and fat, wasted look but doesn't come with stomach bulging like kwashiorkor and marasmic kwashiorkor.
Other symptoms include 
Hypothermia 
Anaemia 
Dehydration 
Shruken eyes
Weak radial pulse
Pneumonia 
Dry skin
Brittle hair e.t.c
 
        
             
        
        
        
Cells, tissue, organs, organ systems, organism.