What type of cell is being described: contains enzymes to break down cell walls, small, and streamlined, millions produced at a time?

What is the next step in muscle contraction after the actin changes shape? (apex)

Body temperature is tightly regulated in mammals for example when external temperatures drop too much the body of a mammal responds by in order to its core temperature?

When making her coffee, mrs. jenkins likes to stir in some cream and sugar to give it a pleasant flavor. the ingredients, when combined like this, form a