The vertebrae and cartilaginous discs of the spine are parts of which body system?
a. circulatory system
b. excretory system
c. muscular system
d. skeletal system

What evidence did mendel find that supported his law of independent assortment? a. dominant traits are expressed when there is a dominant allele. b. traits do not affect the inheritance of other traits. c. some traits have three or four different alleles. d. plants and animals can both reproduce sexually.

Pulmonary arteries carry highly oxygenated blood. true or false?

The color of the fur is the genotypephenotype.the genetic combination of alleles that determine the fur color is called the genotypephenotype.