Which type of organisms do scientists think that all of life on Earth originated from?

stromatolites

single-cell eukaryotes

multicell animals

single-cell prokaryotes

A patient is having a biopsy that will remove the entire mass, plus a margin of surrounding tissue. what type of biopsy will be documented on the operative permit?

What is the function of reverse transcriptase in retroviruses? it converts host cell rna into viral dna. it uses viral rna as a template for dna synthesis. it hydrolyzes the host cell's dna. it translates viral rna into proteins.

Describe the structures involved in gas exchange in the lungs and explain how gas exchange occurs

By what process are these digestive enzymes excreted from pancreas cells?

Which of the following may be associated with the collision of two sections of continental crust? A. hot-spot volcanoes B. earthquakes and a mountain rages C. earthquakes, volcanoes, and trenches D. trenches and earthquakes

Three liquids with different densitits are dumped into a glass what do you expect to see

What materials are the major components of the plasma membrane?

All marsupials expect one group exist on the continent

Which organism in the chart below is most distantly related to the other organisms?

These words were written by Robert Hooke in 1665. The pores or cells that Hooke described were really -