turns Fig 1.1 shows to 3 1 Catalase is an enzyme found in plant and animal cells. It catalyses the breakdown of hydrosy peroxide to form water and oxygen. turns 2H202 ugar 2H₂O + or hydrogen peroxide water oxygen The oxygen produced forms a foam. You can measure the height of the foam to determine catalase activity ds A student investigated catalase activity in cooked and uncooked potato tissue. The student: Step 1 cut two potato cylinders so that they were identical in shape and size Step 2 put 5 cm of 3% hydrogen peroxide solution into a test-tube labelled cooked potato Step 3 put 5 cm of 3% hydrogen peroxide solution into a test-tube labelled uncooked potato Step 4 put one of the potato cylinders into a beaker of hot water for five minutes Step 5 removed the potato cylinder from the hot water and put it into the test-tube labelled cooked potato Step 6 put the uncooked potato cylinder into the test-tube labelled uncooked potato Step 7 left the potato cylinders in the 3% hydrogen pe

from my research i have to the conclusion that decomposers, such as fungi, bacteria and invertebrates, play a critical role in nutrient cycling and without them the earth's ecosystem may not support life as we know it. elements such as carbon, nitrogen and phosphorus exist in limited amounts on earth, although huge amounts of carbon are being released into the atmosphere from underground sources now by humans. it is still extremely important that other nutrients be retained by the process of re-use. decomposers are organisms that are able to chemically break down dead material and make these elements available for use by other organisms. without this breakdown of dead material, dead bodies would pile up. so decomposers also play a role in clean up also. without them, life might not continue as we know it and dead material would overwhelm the earth.    

the diploid number of chromosomes is sometimes represented by the symbol 2n. for the fruit fly, the diploid number is 8, which can be written as 2n = 8, where n represents twice the number of chromosomes in a sperm or egg cell.

the answer would be..

b. sucking