Amushroom's role in the ecosystem is as a
a. population.
b. producer.
c. decomposer.
d. plant. user:
where do consumers get their energy from?
a. from the water
b. from the sun
c. from other organisms
d. from the air

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 .. .

i got something better   a catchphrase here it is

ahem  

ahem

what the squwock

explanation:

where in your body is there an enzyme that does function at a high or low ph? what is the name of that enzyme and its function?