An ancient elephantid species that originated in the tropical climates of
Asia and Africa eventually migrated
north to Europe. During this time,
global temperatures were also slowly
decreasing due to the emergence of
the Ice Age.
1. long-term change or
short-term change
2. Human-created,
natural, or both

one of the most common forms of pain or discomfort we feel during strenuous exercise is a burning sensation in our lungs or muscles that goes away shortly after we cease the activity. this is caused by a build-up of lactic acid.

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.