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.

After reading the paragraph below, answer the questions that follow. researchers have created a robot that has a very thin leg that is moved by cardiac (heart) cells contracting in unison. the robot, made of a polymer similar to that used in making contact lenses, is bathed in heart cells with supporting cells, which then attach to the robot and provide movement as they contract. all of the cardiac cells working together can cause the robot leg to move in a way that individual cells could not. this is an example of a. emergent properties of cells. b. energy flow through an ecosystem. c. adaptation. d. internal environment regulation.

Which type of respiration takes place when there is no oxygen present

How did alexander fleming’s research solve a societal problem? he developed ways to treat inherited diseases. he advocated for regular hand washing to kill germs. he discovered a new type of medicine that could treat infections. he discovered the cause of mad cow disease, an emerging disease.