Complete the sentences to describe the different levels of organization in living things NAN
is a group of organs that work together to perform a common function
AAN
is a group of tissues that work together to perform a common function,
AVAN
is a group of organ systems that work together to perform a common function.
AVAN
is a basic unit of structure and function of all living things
AAN
is a group of cells that work together to perform a common function

they are all solids.

a. the law of proportion states the combination of 2 atoms in a specific ratio to produce multiple compounds such as the given statement of question ‘1st compound contains 88.8 % cu ’ indicates 88.8 g of cu is present along with 11.2 g oxygen in 100 g of compound whereas the statement ‘2st compound contains 79.9 % cu ’ indicates 79.9 g of cu is present along with 20.1 g oxygen in 100 g of compound

1st compound contains 88.8 g cu

for cu

m = 63 g /mol

atomic % = 88.8 /63 = 1.42

for o

m = 16 g /mol

atomic % = 11.2 /16 = 0.7

b. the emperical formula of 1st compound is

cu1.4o0.7

cu2o

the objects have the same charge is correct.

nathan lee