Terrestrial vertebrates detect pheromones using an organ called the __________ organ
Fill in the blank with the correct word.
Answer: Vomeronasal
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The temperature control center within the anterior region of the hypothalamus is activated by ____ and initiates reflexes that mediate ____
a. cold, heat production and heat conservation. b. cold, heat loss. c. warmth, heat loss. d. warmth, heat production and heat conservation. e. warmth, vasoconstriction.
What determines whether a person has type A, B, or O blood?
A. Antibodies in blood plasma that react against foreign red blood cells B. Antibody receptors on the surface of red blood cells C. Variant structures of hemoglobin within red blood cells D. The presence or absence of spectrin in plasma membranes of red blood cells E. Glycolipids that act as antigens on the surface of red blood cells
Which statement is correct?
a) During external respiration, equilibrium is reached for O2 when the partial pressure for O2 in the pulmonary capillaries and the alveoli are the same. b) During external respiration, oxygen is unloaded from the blood. c) During internal respiration, carbon dioxide is unloaded from the blood. d) The greater the available surface area the lower the amount of gas exchange during internal respiration.
This tissue type is a covering and lining tissue. It also includes glands
A) nervous B) connective C) epithelial D) muscle