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.

Which term refers to the total dollar value of the goods and services produced in a country in a year?

Several bird species feed in a certain species of tree. each bird species feeds in a different part of the tree. which statement is true of these bird species? a. they have adapted to different niches due to competition b. they have a carnivorous relationship with the tree species. c. they have adapted to different niches due to predation d. they have a symbiotic relationship with the tree species.

Food contains a sugar called ( ), which is broken down in a process called cellular ( ). this process uses ( ) to break down food molecules and provide energy for cells. fill in the parentheses