The proliferation of cyanobacteria was a major contributing factor to the appearance of advanced organisms. identify the gas released by the cyanobacteria that supports this statement. A. ferrous oxide B. oxygen C. hydrogen

Julie has an ectomorph body type, which means she is tall and thin with long arms and legs

Whitch proscess accurs in aoutrophic organsims

Which end of the of water molecule attracts most electrons and acts negative

Select all the correct answers. What are the characteristics of prokaryotes? A prokaryote lacks a well-defined nucleus. A prokaryote cannot perform basic life functions. A prokaryote lacks cell organelles. A prokaryote is larger than a eukaryote.

A student wonders weather removing the nucleus from a cell would result in a new prokaryote cell. why would this procedure fail to produce a prokaryotic cell?

What substance is made of protein

During which portion of the electrocardiogram do the atria contract

N a lab you are conducting tests with various chemicals and neurotransmitter receptors. you notice that exposed frog muscle cells depolarize when you add the chemical nicotine to the acetylcholine (ach) receptors.

What property of henrietta lacks' cells was most unusual when they were grown in the laboratory?

Which of the following are the reproductive parts of an angiosperm flower? A. anther and ovary B. sepal and anther C. vary and stigma D. sepal and stigma