How do only certain cells respond to particular signaling molecules that may be sent throughout the body? see section 11.3 ( page 244) . how do only certain cells respond to particular signaling molecules that may be sent throughout the body? see section 11.3 ( page 244) . they express the appropriate second messenger(s). they express the appropriate receptor. they express the ras protein. they express the appropriate g protein?

What is one benefit of a non renewable resource, such as natural gas? a. generates large amounts of electricity b. less expensive c. produces pollution d. will run out eventually

3points hurry! what is the relationship between biotechnology, sharkskin, and disease resistance? bioengineers have developed an artificial sharkskin that does not allow resistant bacteria to grow on it. disease-causing microbes have been genetically modified to keep them from infecting the skins of sharks. scientists have created a device that can be attached to the skins of sharks that dramatically increases their abilities to resist disease. sharkskin produces many chemicals that can be collected and used to create antibiotics.

Me the formula cacl2 represents the compound