Sophia Biology Milestone 5.docx - You passed this Milestone...

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You passed this Milestone 24 questions were answered correctly . 2 questions were answered incorrectly . 1 What are villi? Wave-like muscle contractions that push contents through the small intestine Small, finger-like projections that line the mucosa and act to increase surface area and absorb nutrients An enzyme that breaks down fats in the digestive system Hair-like projections that cover villi and aid in absorption of nutrients CONCEPT Small Intestine 2 Which of the following describes the role of renin in maintaining homeostasis? Its release is prompted by an increase in blood volume and blood pressure. It acts to decrease the amount of water that is reabsorbed. Its release is prompted by a decrease in blood volume and blood pressure. It acts to dilute urine. CONCEPT Fluid Balance and Blood Pressure 3 Which of the following statements is true?
Hormones are generalized and can have an effect on any cell in the body. Insulin is an example of a hormone that is released by the adrenal glands. Hormones, which are secreted by the endocrine system, help regulate homeostasis in the body. The pituitary gland is an organ of the endocrine system that secretes the hormone melatonin. CONCEPT Endocrine System 4 The developing child is surrounded by a fluid filled sac called the __________. Placenta Amnion Chorion Yolk sac CONCEPT Placenta 5 Before an oocyte leaves the ovary, it is surrounded by nourishing cells and is called what?

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