Processes in the carbon cycle. ... Carbon enters the atmosphere as carbon dioxide from respiration and combustion. Carbon dioxide is absorbed by producers to make glucose in photosynthesis. Animals feed on the plant passing the carbon compounds along the food chain.
 
        
             
        
        
        
B. homozygous for the recessive allele.
The only way you have a disease caused by a recessive allele is that both of your copies are recessive.
 
        
             
        
        
        
Well Fluvial processes include the movement of Sediment and erosion or deposition.
I think the best answer here is "C"
        
             
        
        
        
Answer:
C
Explanation:
Height in humans is influenced by numerous loci and has a relatively smooth distribution. It is thus a quantitative or continuous trait. 
A quantitative trait locus (QTL) is a DNA territory correlated with a specific phenotypic trait that differs in extent and can be linked to polygenic effects, i.e. the product of two or more genes, and their habitat.