Valine is an amino acid used to make proteins. it is an essential amino acid meaning the body cannot synthesize it and thus, it must be obtained from food sources. its side chain is an isopropyl group. what property of valine would you expect from this side chain?

The serengeti plains are part of the african savanna ecosystem and are home to a variety of different species of plants and animals. the serengeti plains experience a seven-month period of seasonal drought each year, during which the ecosystem receives only four inches of rain and the availability of some resources becomes very scarce. which type of limiting factors does the seasonal drought in the serengeti plains affect?