What did the presence of photosynthetic prokaryotes allow

A. more oxygen to enter the atmosphere

B. more water to enter the atmosphere

C. more sunlight to enter the atmosphere

D. more hydrogen to enter the atmosphere

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 Irish Potato Famine?

What is one reason why many geologists did not at first accept the theory of continenal drift?

What potential problems of a cell are solved by cell division

Another name for the cell membrane is? Fatty Acid Phospholipid Hydrophobic Lipid

How many copies of a dominant allele are needed for that trait to show up?

What is an unusual property of magnetite?

Which describes the scientific view's order of earth's first living things to the most recent? A. cyanobacteria, hagfish, crocodilians, giant ground sloths B. cyanobacteria, crocodilians, hagfish, giant ground sloths C. cyanobacteria.

At what stage of mitosis does the cell grow and make copies of its hereditary material

A landform that has high elevation and a more or less level surface is a ...

Which of the following contain only prokaryotes? A) Domains Bacteria and Eukarya B) Domains Archaea and Bacteria C) Only Domany Eukarya D) Domains Archaea and Eukarya