An atom of the element zinc has an atomic number of 30 and a mass number of 65. how many protons does an uncharged zinc atom have? choose one: 30 35 65 95

Providing immunity by injecting the body with a weakened form a pathogen is known as

State officials are considering constructing a road through a forested wilderness area. this action will likely affect the forest ecosystem in various ways. part a: predict how the construction of a road could negatively affect plants and animals in that ecosystem. (3 points) part b: describe one way that the construction of a road could have a positive impact of the forest ecosystem. (1 point)

According to the cell theory, which describes cells? a. all organisms are composed of multiple cells. b. all cells have the same structure and function. c. cells are found in everything on earth. d. living organisms are not created spontaneously