An environmental change occurs, causing a change in the plot of snails present in an ecosystem. the graph shows the color distribution in a snail population at two different times. select three possible explanations for the result in the graph. science is not my strong suit could someone me out and explain the answer?

What did the first language sound like

Drag each label to the correct location on the image. each label can be used more than once. a scientist introduced mutations in a gene sequence isolated from bacteria. study the sequence, and identify the steps where the mutations may affect the formation of proteins. in the sequence, black letters stand for protein coding regions and red letters stand for noncoding regions. protein will not be changed. protein may be changed. attcgtgttc atcgtgttc atcgtattc attcgtattc

Microorganisms are involved in each of the following processes excepta. smog production.b. food production.c. infection.d. o2 production.e. decomposition of organic material.