The discovery of supermassive black holes began with the discovery of
- tiny black holes.
- the Milky Way.
-adio energy from space.
-the Big Dipper.

Texas bluebonnet plants seen in this photo are an example of which ecological unit?

She planned to observe the flowers for the next five days for an hour at the same time each afternoon. then she wou the data in a multiple line graph to compare the number of bees that visited each flower. which statement best descr data in this investigation?

What is true of all organisms in the kingdoms protista, plantae, fungi, and animalia? a. they are multi-celled. b. they are photosynthetic. c. they have cells that contain membrane-bound organelles. d. they contain cells that lack membrane-bound organelles.