In the formation of a protein, what type of bond would join two amino acid subunits?

What two fields of study provide the core information that is used to classify organisms?

Why does the skin of your finger shrink when you wash clothes for a long time?

Which scientific design has both practical limitations and limitations due to scale? studying the effect of bleach on the growth of mold spores exposing cultures of duckweed to different intensities of light observing the replication of dna molecules with a hand lens using colored marbles to model a cross between two colors of rabbits