Why does a cell make a copy of its DNA before it dvides?

Which term refuses to the structure that forms the surface of a cell, separating it's contents from the outside world a. Golgi apparatus b. Cell membrane c. Cytoskeleton d. Plasmid

Will a sample float in water that has a mass of 64 g and a volume of 66 mL

Find the molarity of a 40.0 % by mass aqueous solution of sulphuric acid H2SO4 for which the density is 1.3057 g/ml

What are the products of the hydrolysis of ATP? What else is released during this reaction?

In the "Design a Thermos" lab, the temperature of the thermos was compared with a container that was not insulated. What was the purpose of that container? A That container was the independent variable.

What is the net ionic equation for AgNO3 (aq) + Na2SO4 (aq)

What does it take to prove a hypothesis false? O A. It is impossible to prove a hypothesis false O B. At least ten examples O C. One counterexample O D. A poorly stated question

We dissolve 5g of sugar, C12H22O11, in water to make 1L solution. What is the concentration of this solution expressed as molarity.

Explain how the molar mass of a gas affects the rate at which the gas diffuses and effuses

Wat is a redox reaction