Which is a controlled variable in this experiment

Which of these hydrocarbons has a double bond in its carbon skeleton? a. C3H8 b. C2H6 c. CH4 d. C2H4 (I don't know how to find out if their is a double bond based on the molecular formula)

Some vectors such as puc18 and others of the puc series contain a large number of restriction enzyme sites clustered in one region. Which term is given to this advantageous arrangement of restriction sites?

If 5 hints to stop germs from spreading when cooking or preparing food

Would areas along the shores of the Great Lakes have warmer summers and colder winters than other inland areas? Why or why not?

How can a star become a neutron star

Why did Gregor Mendel use peas in his experimentsGregor Mendel's research formed the basis of the field of

Why does the shape of moon change when seen from earth

How the insect grow although their body is entirely covered by chitin which is non elastic and non fexible

What is an example of a specialized cell

Energy produced from material that comes from living organisms is known as