Why are desert landscapes jagged and rocky? There is little chemical weathering to round the landscape. Lack of vegetation causes sinkholes between rock formations. The evaporation process creates angular surfaces.

A. There is little chemical weathering to round the landscape.

Explanation:

There is little chemical weathering to round the landscape in desert, primarily because there is significantly small to none water available to cause any weathering of the rocks or other structures in deserts.

enzyme speed up the reactions

small, big, or no change could occur in the phenotype. it could cause something as simple as a cats ears to curl backwards or something as frighting as death. it could also occur in the protien-coding area and have an effect on that but no effect on the amino acids. what has to occur is a changing in the hox gene or the control gene.