An astronomer oberves a blue shift in the nearby Andromeda galaxy. What does that tell the astronomer.

A) The galaxy is moving away from earth
B) the galaxy is stationary
C) the galaxy is moving parallel to earth
D) The galaxy is moving towards earth.

(6.02 mc)what affect do marine protected areas have on environmental quality? they increase environmental quality by preventing resource overuse. they increase environmental quality by adding new species. they decrease environmental quality by removing all human activity. they decrease environmental quality by adding recycling facilities.

Which could be a pathway of food through an ecosystem

Fungi exist as single cells or as branching networks of multicellular filaments. how does the structure of filaments relate to their function