When blood glucose levels rises, the pancreas secretes insulin, and as a result blood result glucose level declines. when blood glucose levels is low, the pancreas secretes glucagon, as a result blood glucose levels rises. such regulation of blood glucose levels is the of

a) protein-protein interactions
b)catalytic feedback
c)negative feedback
d)positive feedback

the darker peppered moth species were favored due to the fact that the industrial revolution had made all the nearby trees a darker color instead of white.

1. loamy sand is about 80% sand with 10% clay and defined mostly by sand particles with some clay to provide structure and fertility. the sand particles are easily visible and the soil holds structure but breaks apart easily.

2. scott sand can improve his soil quality by incorporating more silt and organic matter into the soil. peat moss and organic matter can also be incorporated.