Abreeder wanted to create a new variety of potatoes that produces more of the vitamins found in the roots of carrots than in typical potatoes. what method of selective breeding would the breeder most likely use?
a. inbreeding
b. hybridization
c. hand pollination
d. genetic engineering

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 correct answer: the index of refraction of the second medium is lower i tried this persons answer and it was wrong this person is lying