Answer:
Use a complex number baised upon the vgiven values a icutre of the diagram will be need for further detail
Explanation:
This biome has a layer of soil that can either be sandy, gravelly, or stony, depending on the type of desert. Deserts usually get at most 50 centimeters (20 inches) of rainfall a year, and the organisms that live in deserts are adapted to this extremely dry climate. Plants in deserts have adaptations to conserve water.
Darwin's "Origin of Species" and Lamark's "Theory of Inherited Characteristics"
I would pick younger and thinner, but follow your gut because I really don't know