Plants don’t grow as well when has been lost.

a. clay
b. topsoil
c. parent rock
d. slope

Plants don’t grow as well when topsoil has been lost.  

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.

any abiotic or biotic factor in an ecosystem that causes a population's size to slow or decrease is a limiting factor.