Cover crops, they lay over the field and when it is windy or rainy they reduce the damage to top soil. I’m 80% sure
The role a of a digestive system is
Your digestive system breaks down the food you eat into nutrients such as carbohydrates, fats and proteins. They can then be absorbed into your bloodstream so your body can use them for energy, growth and repair.
The food web would be likely destroyed because one animal will not have nothing to eat out of the food we’d and then that’s how the food web will be messed up
They all have a rocky surface
It is a mode of natural selection where an extreme phenotype is favored by the other phenotypes causing the allele frequency to shift over time in the direction of that phenotype