Answer: It would probably be A.
Explanation: Abrasion means scraping or wearing away. Therefore the correct sample is probably going to look smaller, smoother, and more even from all the scraping of the river currents.
Hope that helps!
Answer: due to insufficient exocytosis in the type II alveolar cells
Answer:
25.2
Explanation:
you add app all the numbers for the 1 column and divide by 7 then you do the same for the other column then subtract the totals from both to get the answer