Urgent will give if an intercellular signal relies on some type of receptor to enter the cell, what happens next? a. the signal produces an enzyme that spreads the message. b. the signal is decoded by a hormone and then recoded for the ribosomes c. the signal is transferred to an adjacent cell where it is interpreted. d. the signal is delivered and intracellular communication takes over

Cladistics is a way of classifying organisms by examining the characteristics of their ancestors and descendants and depicting the relationships in a cladogram. which of the following best describes a challenge in classifying organisms this way? a. there are millions of species on earth, and a cladogram is not a practical means for classifying all of them. b. it is impossible to tell which organisms are most closely related to each other using a cladogram. c. cladograms are detail-oriented and do not provide a useful understanding of evolutionary relationships. d. there is a limited number of ways to organize the information, so most cladograms end up looking very similar.