The reason scientists believe this is that there was basically no oxygen in the atmosphere at this time, which meant that cells needed to be anaerobic to survive,<span> going around the problem of no oxygen in the atmosphere.
Hope this helps.</span>
True, our ecosystem is not independent. Everything depends on everything else to survive. :)
Answer:
reagin type antibody.
Explanation:
The rapid plasma reagin test is a test used to diagnose syphilis.
Syphilis is a sexually transmitted disease which is caused by treponema pallidum.
The rapid plasma reagin test is not for measuring the antibodies against actual bacteria but for measuring the antibodies formation due to material released because of tissues damaged by treponema pallidum like IgG and IgM against lipodial materials which is released from damaged cells.
8 molecules would result, since 2^3 = 8. Each time PCR is performed, the orginal number of molcules double.
