Most filter-feeding whales have calls between 15 to 25 hertz, but one type of filter-feeding whale has a much higher frequency, at 52 hertz. what likely differs between the two whale calls? the distance from crest to crest the height of the waves the time it takes for successive crests to pass through a point the vertical distance between the trough of a wave and the closest crest

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 .. .

the answer is: reproductively

i think i spelled it wrong lol

anyways hope i

-lavira: )

answer: substrate concentration. enzymes work best when there is a high enough substrate concentration for the reaction they catalyse.