What are the cells surrounding the stomata called?
guard cells
mesophyll cells
palisade cells

If jane has the blood type ab and marries john who has type o blood what are the possible phenotypes of their first kid?

How does the carbon cycle involve an exchange of carbon

Select the correct answer from each drop-down menu. the lac operon in e.coli regulates genes that code for enzymes required for breakdown of lactose. the lac operon is operon that is activated in the presence of .