(Q).
Answer the following question given this paragraph: There are two different types of specific immune responses. One type involves B cells. The other type involves T cells. Recall that B cells and T cells are types of white blood cells that are key in the immune response. Whereas the immune system's first and second line of defense are more generalized or non-specific, the immune response is specific. It can be described as a specific response to a specific pathogen, meaning it uses methods to target just one pathogen at a time. These methods involve B and T cells. Q: B cells and t cells are examples of what type of cells? Choices: - heart cells - cancer cells - skin cells - white blood cells A:
(A).
white blood cells

(Q).
Answer the following question given this paragraph: Volume is another way of measuring material. Gases cannot be easily weighed, but their volume can be determined quickly and accurately. Liquid chemicals as well as foods and beverages are also sold by volume. Gasoline for our cars and trucks is sold by the gallon. At the grocery store, we can buy a gallon of milk or a two-liter bottle of soda pop. Q: Volume is another way of measuring what? Choices: - length - weight - height - material A:
(A).
material

(Q).
Answer the following question given this paragraph: The chapter focuses on the atmosphere. Beyond the atmosphere is space. The next chapter introduces the study of space. Q: What is beyond the atmosphere? Choices: - object - air - vacuum - space A:
(A).
space