. A chronological system of measurement that scientists use to describe the timing of events and its relationship to life and the history of the earth is the. A genetic drift
B grandualism
C geologic time scale
D speciation
E natural selection ​

a compound light microscope is used to magnify objects in steps.  

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increases the risk of extinction 

explanation:

the answer is that if the species suffers from the disease, there is nothing stronger than the others, so it is possible to remove wholeness. an example of this is hunger in irish potatoes, which has a deadly disease bearish part of all potato harvest masses. pretty much ruins the land of crops.

usually, you should eat light spicy foods without eating spicy foods. if you don't drink alcohol, you can eat more fruits and vegetables. chondroitin synthase ( ) is an enzyme that catalyzes the chemical reaction: udp-alpha-d-glucuronate + n-acetyl-beta-d-galactosaminyl-(1-> 4)-beta-d-glucuronosyl- proteoglycan → udp + beta-d-glucuronosyl-(1-> 3)-n-acetyl-beta-d-galactosaminyl-(1-> 4)- beta-d-glucuronosyl-proteoglycan.