How is a euglena like a plant cell? how is it like an animal cell?
like a plant cell:
like an animal cell:

Two objects of different mass start from rest, are pulled by the same magnitude net force, and are moved through the same distance. the work done on object 1 is 900 j. after the force has pulled each object, object 1 moves twice as fast as object 2. how much work is done on object 2?

Which of the following are guidelines to follow for obtaining accurate observations

The heliocentric and the geocentric models of the solar system included these central principles