Which of the living things in the pond system uses the energy from sunlight to make its own food?

A:water lily

B:insect

C:frog

D:small fish

What does the cell nucleus do or, how does it function?

Calcium chloride +gold(1) oxide—>

Tin has ten stable isotopes. the heaviest, 124sn, makes up 5.80% of naturally occuring tin atoms. how many atoms of 124sn are present in 82.0 g of naturally occurring tin? what is the total mass of the 124sn atoms in this sample?