(Question)
Answer the following question given this paragraph: In order to live on land and in water, frogs have three eyelid membranes: one is see-through to protect the eyes underwater, and the two other ones let them see on land. Frogs also have a tympanum , which acts like a simple ear. They are found on each side of the head. In some species, the tympanum is covered by skin. Q: How many eyelid membranes do frogs have? Choices: - two - four - one - three A:
(Answer)
three

(Question)
Answer the following question given this paragraph: The convection zone surrounds the radiative zone. In the convection zone, hot material from near the Sun's center rises. This material cools at the surface, and then plunges back downward. The material then receives more heat from the radiative zone. Q: Hot material from near the sun's center rises in which zone? Choices: - thermosphere - radiative zone - drifting zone - convection zone A:
(Answer)
convection zone

(Question)
Answer the following question given this paragraph: Acne Acne is a skin disturbance that typically occurs on areas of the skin that are rich in sebaceous glands (face and back). It is most common along with the onset of puberty due to associated hormonal changes, but can also occur in infants and continue into adulthood. Hormones, such as androgens, stimulate the release of sebum. An overproduction and accumulation of sebum along with keratin can block hair follicles. This plug is initially white. The sebum, when oxidized by exposure to air, turns black. Acne results from infection by acne-causing bacteria (Propionibacterium and Staphylococcus), which can lead to redness and potential scarring due to the natural wound healing process (Figure 5.22). Q: Acne is a skin disturbance that typically occurs on areas of the skin that are rich in sebaceous glands (face and back). it is most common along with the onset of puberty due to association with these? Choices: - mental changes - digestive changes - thermal changes - hormonal changes A:
(Answer)
hormonal changes