Which of the following is an example of electromagnetic waves in nature?

a. light

b. sound

c. seismic waves

d. primary waves

Aragonite shells of clams, snails, or scleractinian corals may be preserved unaltered in cenozoic deposits, but they are generally dissolved or recrystallized in older deposits. true or false

Protein and polypeptide sequences can be determined by first partially hydrolyzing the protein or polypeptide followed by amino acid sequencing of the fragment pieces using the chemical degradation process known as edman degradation. determine the sequence of the initial (18-amino acid) polypeptide that produces the following five partial sequences after hydrolysis and edman degradation.

which is an effect of short-term environmental changes? a) adaptation b) speciation c) extinction d) death (5 points)