Which of the following represent issues of great uncertainty regarding early Earth? Choose one or more: ✓ A. whether early life forms were thermophiles or psychrophiles B. whether first life was prokaryotic or eukaryotic C. whether life evolved here or was of extraplanetary origin D. whether first organisms were aerobes or anaerobes O E. role of methanogens and atmospheric methane

What is meant by the term fossil fuel? a. In order to obtain energy from these fuels, a technique known as fossilization must be used. b. The fuel was formed from ancient plant and animal life, representations of which are sometimes found as fossil imprints. C. The fuel itself must be taken from older rock samples that frequently contain embedded fossil remains. 7.

Which of the following statements about the current classification scheme for all life on this planet are true (note, there are more than one correct answer). O The closest relatives to the Animal Kingdom which includes humans are the Fungi OThe taxonomic system arranges organisms from the most primitive, like fungi and bacteria, to the most advanced, like humans O All life can best be separated into 3 Domains: Bacteria, Archaea and Eukarya O All life can best be separated into 5 main Kingdoms: Plants, Animals, Fungi, Bacteria and Protists O All life can best be separated into 6 main Kingdoms: Plants, Bacteria, Archaea, Animals, Fungi, Protists and Plants Show all Ailler Chapter 2.pdf 11:05 PM 1/17/2021 P Type here to search

If the evolution of life was placed on  a 24 hour clock, when did humans arrive? a.  At the 30  minute mark. b.  1 minute into the beginning c.  Less than 1 secong to do ( to the end) d.  Right at the ver start