The graph below shows genotype percentages for generations 20 through 26. the initial genotype percentages were 34% dd, 32% dd, and 34% dd. the fitness levels were 100% for dd and dd; and 60% for dd. why does the deleterious dd genotype persist for so long in the simulation?

The graph below shows genotype percentages for generations 20 through 26. The initial genotype percentages were 34% DD, 32% Dd, and 34% dd. The fitness levels were 100% for DD and Dd; and 60% for dd. The reason why the deleterious dd genotype persists for so long in the simulation is…

C) Although dd parrots are much less likely to survive and reproduce, new dd parrots are constantly being born from Dd Dd pairs.

I hope it helps, Regards.

sheep is a herbivore animal whereas grasshopper belongs to the class chordates but both of them feed on greens.  

if grasshopper and sheep feeding on a pasture land, i do not think both of them will have any impact on each other. however, the number of the species can make difference. since sheep feed on greens, there is a possibility there left no pasture land for the grasshoppers or they may get extinct.

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.