___________________ were the first organisms in the history of life on earth that could use solar energy to build organic compounds from CO2, and in the process break down water molecules to release oxygen.
a. Cyanobacteria
b. Chemolithotrophs
c. Retroviruses
Ans: a. Cyanobacteria
You might also like to view...
The unique double shells of diatoms are made of
A. cellulose. B. silica. C. chlorophylls. D. agar. E. proteins.
A missense mutation causes sickle cell disease by
A) altering the protein's shape and affecting its function. B) changing a sense codon to a stop codon. C) altering an intron splicing site so that an entire exon is deleted. D) substituting beta globin chains with alpha globin chains.
Hari is experiencing intense pain in one point in his body. Maryam has the perfect solution! She has a wonderful drug that is guaranteed to take away all pain, and she wants Hari to take it before going to the doctor
Why should Hari not take the drug, according to the information in this chapter?
An increase in the current fertility rate of the human species will increase the human carrying capacity of Earth
Indicate whether the statement is true or false