When pyruvate molecules enter the mitochondrion during cellular respiration, they react to form
a)ethyl alcohol and atp
b)acetyl-coa and carbon dioxide
c)glucose and carbon dioxide lactic
d)acid and nad

Acetyl-CoA and Carbon Dioxide

Explanation:

In Krebs cycle, glucose is 2 pyruvate's which makes carbon dioxide and acetyl-CoA. Hope This Helps:)

relative dating involves things like higher layers are most recent than rocks lower in the sequence. this can be extended to the known sequence of fossils. rocks containing rabbit fossils are later than those containing dinosaur fossils.  

absolute dating methods mainly use radioactive elements that have known rates of decay and produce recognizable products. for example potassium 40 decays to produce argon. once a rock has solidified the argon is trapped. by measuring the argon and potassium0 you can get an accurate number for the age.  

some other methods are good for archaeological ages. dendrochronology involves recognizing the sequence of tree rings. the orientation of magnetized particles in baked clay can be used to date a fire.

hope this .. .

1 digestive system

2 stomach

3 bladder

4 carbon deoxide

5 tiger