Which of the following best describes bacteriophage? w
A. A bacterium that obtains energy by feeding on other bacteria
B. A virus that infects bacteria
C. A virus that passes eukaryotic genes to prokaryotes
D. A bacterium that takes in free DNA from its environment

It is believed that europa, one of jupiter’s moons has an ocean beneath its surface. based on how earth’s oceans and atmosphere are believed to have formed, what can be said about europa’s supposed ocean? the arrival of in the early days of europa’s existence could have formed its ocean. it is likely that the water experienced , similar to earth. it is also possible that this water is retained beneath europa’s surface and in its atmosphere due to europa’s .

What is the next step in muscle contraction after the actin changes shape?

What are the threadlike proteins that attach to platelets in blood clotting?