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.

The human body maintains a temperature of around 98.6 degrees at all times. enzymes are involved in almost every chemical reaction in the body. which of the following describes the connection between these two statements? a. enzymes function best at a specific temperature. b. the body needs to be warm to prevent hypothermia. c. the body is kept relatively warm to prevent too much enzyme action. d. there is no connection between the two statements.

During which phase does the dna make a copy of itself?

The gulf stream and north atlantic current modify the climate of northwestern europe by making the climatea) warmer and drierb) warmer and more humidc) cooler and drierd) cooler and more humid