What is the process called when cells break off of an original tumor and create new cancer sites?
benign
malignant
metastasis
biopsy

The right answer is b hydrogen bonds!

The higher you go up the less oxygen there is 

That is true tge cactus as a structural adaptation to its envirinment has it leaves reduced to spines. but this doesnt mean it cant produce food it produces food because of the presence of chlorophyll in its stem