ben was studying the irish potato famine and wanted to identify a critical factor for it. which factor can ben consider as critical for

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

Which kind of worm has a closed circulatory system? a planarian b fluke c pinworm d an earthworm

Archaebacteria use for movement. celia flagella pili cell walls