Heartworms are parasitic what?
O Hookworms
O Roundworms
O Tapeworms
O Earthworms

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?

Describe the primary and secondary immune response in terms of speed and number of antibodies produced?

Development of new communities in disturbed environments, such as a burned or a clear cut forest, is called