What two glands are involved in regulating sugar levels in the bloodstream? A. Thyroid and testes
B. Pituitary and Thymus
C. Ovaries and Hypothalamus
D. Adrenal Pancreas

Embryonic stem cells are cells derived from an embryo. these cells can be used to create new tissues for patients suffering from certain illnesses and disorders. which statement best summarizes why the use of embryonic stem cells could be seen as unethical?

Which of the following is one of the four conditions necessary for natural selection to occur in a population? fewer organisms are born than the habitat can support mutation does not occur organisms have identical characteristics variation is inherited

Which element forms the basis of all organic organisms a carbon b oxygen c hydrogen d nitrogen