Which does not result in habitat destruction? a. animal grazing b. composting c. farming d. road building

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

The vaccine in a flu shot contains weakened flu viruses. how does a flu shot work with the immune system? a. it destroys lymphocytes. b. it destroys macrophages. c. it activates macrophages. d. it activates lymphocytes.

The activity of the modern sample is 1.10 bq . how long does that measurement take?