In an experiment, the hypothesis is that a red shirt fades faster when washed more frequently . this hypothesis is

testable
falsifiable
observable
repeatable
all of the above

Explain light independent reactions

The intervention of extraterrestrials has been used to explain the bermuda triangle, a region of the atlantic ocean where ships and planes are frequently lost, leaving no evidence behind. how would this explanation best be characterized?

Question 17 (1 point) where does penicillin come from? a. it is a chemical that man invented b. it is a fungus c. it is a toxin made by other bacteria d. it was discovered in archaebacteria