Yeast cells are eukaryotic. What does this mean? in your own words

What are some possible short and long term medical concerns for crew members on longer space exploration trips

When coal has reached it hardest, darkest form, it is called select one: 0 a. sub-bituminous b. lignite c. bituminous d. antrhacite next page

The galapagos island contain 13 species of finches four of the species are seen here it is believed that all of the species had one common ancestor and overtime