Colonies occur when an animal produces many young asexually and they become detached from the original (parent) animal and result as an independent mass. a) true b) false

This one is worded a bit weird. In Biology a colony is several individuals (within the same species) living within close association. In microbiology, though, this statement is correct; (In microbiology) a colony is a mass of microorganisms all descending from a single mother cell, all the bacteria within a colony are genetic clones of the mother cell. 

The answer above in incorrect, The right answer is False

The liver changes toxic substances into less toxic substances that then travel to the kidneys TRUE

the kidneys filter blood and produce urine TRUE

urine is made from the nutrients that are reabsorbed back into the blood from the tubules TRUE

the kidney is the functional unit of the nephron TRUE

urine is produced in the nephrons of the kidneys FALSE

urine that is produced in the kidneys flows down the urethra to the the bladder for storage and then is excreted though the ureters TRUE