An avalanche takes place when ice and snow move down a slope with great speed. What effect does friction have on its rate of movement?

Casts and mold are a type of preservation where the original material decays, leaving a mold in surrounding rock that can be filled with another sediment a. true b. false

Which of the following words best matches this definition: the process in which the best adapted organisms survive and pass on their traits, while those that are not well adapted do not survive to pass on their traits. question 3 options: acquired selection natural selection artificial selection organic selection

What are antigens and antibodies? how are they involved in the body’s response to incompatible blood?