Teas 6 science practice. Review questions and answers. Graded A+

What is the name of the structure that prevents food from entering the airway? - Epiglottis Which substance makes up the pads that provide support between the vertebrae? - Cartilage The two criteria for classifying epithelial tissue are cell layers and ______ - Cell shape Where is the parathyroid gland located? - Neck How many organ systems are in the human body? - 11 Which element within the respiratory system is responsible for removing foreign matter from the lungs? - Cilia What is the name of the process in the lungs by which oxygen is transported from the air to the blood? - Diffusion Which gland is responsible for the regulation of calcium levels? - Parathyroid Which secretion of the digestive system is responsible for water reabsorption? - Large intestine Describe one responsibility of the integumentary system. - Blocking pathogens that cause disease When are parasympathetic nerves active within the nervous system? - When a person is resting or eating What best describes the relationship between the circulatory system and the integumentary system? - Removal of excess heat from body Once blood has been oxygenated, it travels through the pulmonary veins, through the left atrium, and then through the _______ before entering the left ventricle. - Mitral valve The part of the human excretory system most responsible for maintaining normal body temperature is what? - Sweat glands A part of what body system controls fluid loss, protects deep tissue, and synthesizes vitamin D? - Integumentary system The respiratory system ______ oxygen and ______ carbon dioxide. - Delivers; expels What is the name for any substance that stimulates the production of antibodies? - Antigen What does not exist in RNA? - Thymine In what muscle type are the filaments arranged in a disorderly manner? - Smooth muscle Which hormone is produced by the pineal gland? - Melatonin