The group of molecules called nucleotides contain:

A) phosphate groups.

B) pyrimidines.

C) purines.

D) pentose (a 5-carbon sugar).

E) all of the above.

Do all cells have the same function

How many moles of carbon monoxide are there in 36.55g of carbon monoxide?

The average adult exhales about 1.0 kg of carbon dioxide each day. How much oxygen is needed in metabolizing glucose (C6H12O6, 180 g/mol) to make that much carbon dioxide?

A wealthy person in Los Angeles, California, who decides to never own a car could be considered as part of an?

Which of the following is a density-independent factor? a. disease b. predation c. natural disasters d. stress

Which of the following is NOT true of nitrogen fixation? (A) it is a process that occurs exclusively in some species of prokaryotes (B) it sometimes occurs in bacteria that are mutualistic symbionts in plant roots (C) it is the metabolic process

What two pieces of information do u need to describe force

Why are the atomic masses for most elements not whole numbers?

An aqueous solution is 0.387 m in hcl. what is the molality of the solution if the density is 1.23 g/ml?

Carbon monoxide reacts with oxygen to form carbon dioxide. 2 CO (g) + O2 (g) → 2C02 (8) In a 1.00 L flask, 3.40 atm of CO reacts with 2.60 atm of O2. Assuming that the temperature remains constant, what is the final pressure in the flask? 4.30 atm 2.