Choose how a cell recognizes only the signals meant for it. Cells may have receptor proteins that respond to light and sound
O
Cells may have receptor proteins in the cytoplasm that respond to touch.
Cells may have receptor proteins of specific shapes that certain molecules fit in
Cells may have receptor proteins that repel certain sig

How is ribosomal rna useful as a molecular clock? a. a large portion of the dna ring is not vital to structure or function, allowing it to accumulate neutral mutations. b. its rate of mutation increases over time as organisms continue to evolve and differentiate from each other. c. a slow mutation rate makes it useful for determining evolutionary relationships between ancient species. d. it is only found in select organisms, making it easier to compare relationships between species that have it.

Explain how sequences of amino acids in proteins can be used to reveal relationships among organisms.

In the united states there are many types of rabbits. four different species have four different ranges or habitats. in which range would developing white fur in winter most likely not be an advantage?