Which of these options correctly identifies the aerobic and anaerobic phases of cellular respiration? (that is, which phases require oxygen to proceed or not) a.
Anaerobic: glycolysis and electron transport chain

Aerobic: Krebs cycle

b.
Anaerobic: glycolysis

Aerobic: Krebs cycle and fermentation

c.
Anaerobic: glycolysis

Aerobic: Krebs cycle and electron transport chain

d.
Anaerobic: glycolysis and Krebs cycle

Aerobic: electron transport chain

Which phrases describe an extrusive rock? check all that apply. fine texture cooled slowly small crystal size found deep underground different, easily observed minerals

9. the history of life on earth is recorded in

Pls in your opinion, what are the limiting factors that might affect the growth or diversity of our ecosystem? respond to this question in claim, evidence, reasoning format. 1. make your claim (i are the limiting factors that might affect the growth or diversity of our 2. follow the claim with 3 pieces of evidence. evidence may be taken from the reading, the videos, previous lessons, or googled answers. site sources, too. 3. use reasoning to explain why you chose your evidence.