The hypophyseal portal system transports releasing and inhibiting hormones from the hypothalamus to the

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?

Some mining processes involve removal of large areas of earths surface in the mined region this practice causes severe environmental damage by allowing which natural process to accelerate in the affected areas? a.precipitation b.erosion c.migration d.condensation

Apaleontologist finds a plant fossil that shows that the plant had seeds. what can the paleontologist conclude?