PDF chapter test TRY NOW

Select the mis-matched pair in the following and correct it.

a. Biomagnification - Accumulation of chemicals at the successive trophic levels of a food chain
b. Ecosystem - Biotic components of environment
c. Aquarium - A man-made ecosystem
d. Parasites - Organisms which obtain food from other living organisms
 
Which of the terms above and their interpretations are incorrect?