it has a great variety of species
There are many such statements
Wood is biologically degradable.
all the cells have identical DNA
Your statement is correct.
I believe it was Bernie Ohls (regis-toomey) if i am thinking of the correct person
it persists until the environment changes.
No, the correct statement is: That is mine.
"Correct thinking" is just what the name implies. Thinking that is not erroneous. Logically correct thought.
To take back (or retract) a statement means to say that the statement was not correct, or is no longer correct.
Thinking is the correct spelling.
Yes, that is a grammatical statement.
I think that is a statement one could make about the sculpture and be correct. There is no way to know what Michelangelo was thinking. There are some accounts from this period, most notable is Vasari, see link.
That is correct.
That is the correct spelling for statement (account, report).
A statement that is factually correct and does not mislead.
It is correct.
No. We may have an ideology, but we are not "in" it. Use I don't know what he is thinking.