Which substances is lost from the body of a healthy person by the kidneys, But not by the lungs A. Carbon dioxide
B. Glucose
C. Urea
D. Water

What was the purpose of mendel's experiments with dihybrid crosses? a. to determine if dna was a transforming factor b. to determine if traits could be recessive c. to determine if traits affected each other d. to determine if traits had more than one allele

Which kind of worm has a closed circulatory system? a planarian b fluke c pinworm d an earthworm

What type of graph presents information about how often certain or traits occur?