What three ways does the respiratory system modify air before it reaches the lungs?

What would be the most likely result if the ph of the stomach were increased to 5

Fungi are classified into how many groups? a. 1 group b. 2 groups c. 3 groups d. 4 groups

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