Which is a sex-linked recessive disorder that could be represented by the pedigree chart?

The bacteria found in soil is usually harmful and measures are taken to remove any traces of microorganisms. true or false

Advances in technology have enabled scientists and researchers to better study the evolutionary relationships between species

The earths core is made up mainly of what 2 substances? 2. like an egg, earth has a core, a layer surrounding the core, and a thin, hard outer layer. which layers of the earth match the layers of an egg?