Which substance is a heterogeneous mixture? A. a sugar cube
B. pure olive oil
C. liquid dishwashing soap
D. chicken noodle soup

pls answer asap!

Categorize each term as something that is typical of a scientific theory, a scientific hypothesis, or both. makes predictions

Cathy hypothesized that corn would not grow in mud. to test this hypothesis, she took corn kernels and placed 5 in mud, 3 in soil, and 2 in water. to her surprise, the kernels in the mud grew faster than the kernels in the soil. what error might have caused these unexpected results? a. wrong hypothesis b. not enough variables c. undefined control d. too many variables

The ultimate purpose of respiration: a. inhale 02 and exhale co2 b. place oxygen in the lungs c. place oxygen in the blood d. deliver oxygen to every blood cell