This is a quiz dont answer if you dont know the answer

which of the following animals is a endothom?
a. grass hopper
b. horse
c. lizard
d. snake

Which aqueous solution of ki freezes at the lowest temperature? 1) 1 mol of ki in 500. g of water 2) 2 mol of ki in 500. g of water 3) 1 mol of ki in 1000. g of water 4) 2 mol of ki in 1000. g of water