Although Cyanobacteria contribute more than 35% of all photosynthesis on Earth, they are not visible in the natural environment
Indicate whether the statement is true or false.
Answer: FALSE
Biology & Microbiology
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There are bacteria that live on single-celled eukaryotes
A. true B. false
Biology & Microbiology
The primitive Earth's atmosphere did NOT contain
a. free oxygen. b. free nitrogen. c. free hydrogen. d. water vapor. e. inert gases.
Biology & Microbiology
The advantage to a species of using a pheromone for communication rather than calling or gesturing is that it _____
a. conveys more information b. is more easily understood c. is more energy efficient d. is more variable e. conveys immediate information
Biology & Microbiology
All genes are expressed in either the prenatal or newborn stages. Indicate whether the statement is true or false
Biology & Microbiology