Because of the heart beating it makes a thunk noise. Your heart has a suction affect which makes the noise.
Metabolism, Hope that helped!
Answer:
The cell was first discovered by Robert Hooke in 1665 using a microscope. The first cell theory is credited to the work of Theodor Schwann and Matthias Jakob Schleiden in the 1830s.
Hi don’t click the link the other person sent, they could track your location. your answer is C i believe, stay safe
Hello,
of the biomes listed below, tropical seasonal forests <span>experience higher average temperatures than the others.
Hope this helps! :)</span>