Which human organ system produces hormones to regulate growth, development, and reproduction? a-circulatory
b-digestive
c-nervous
d-endocrine

Which of the following must be treated under the care of a physician and is mainly considered a medical condition? a. scoliosis b. lordosis c. kyphosis d. all of the above

When were the first laws enacted in the united states to protect farm animal from cruel treatment? select one or more: a. 1480 b. 1792 c. 1828 d. 1886

By 2 weeks after fertilization the morula has implanted into the uterine lining and transforms into a(n) . this time is when the , or the organ that will provide nourishment to the fetus by exchanging nutrients and waste products, begins to develop.