The male red-winged blackbird has a bright-red patch on its shoulder. this adaptation increases its chances of mating with the female blackbird. some of the birds underwent mutation, and their offspring didn't have the red-colored patch.

Use the drop down menus to match each example to the fossil topic discussed then to show how the fossil record gives evidence of evolution

According the inverse square law, doubling the distance from the source of the sound, a speaker, for example, will drop the sound 6 db each time. if you were standing in the back of an auditorium, 32 feet away from a speaker not using any amplification, would you be able to hear a speaker clearly? why or why not?

Gregor mendel is best known for his work with pea plants and for uncover many of the mysteries of genetics. one of his major findings stated that there were specific, physical units of inheritance that are transmitted during reproduction. what is the the name given to these units of inheritance which can be found on chromosomes? a) centromeres b) cytoplasm c) genes d) nucleotides