Monotremes
100: This feature distinguishes monotremes from all other mammals.
What is egg-laying reproduction?
100: This muscle contracts downward to help mammals inhale air.
What is the diaphragm?
100: What type of fertilization is more advantageous for mammals?
What is internal fertilization?
100: What role does fur or hair primarily serve in mammals?
What is temperature regulation?)
100: Which group is made entirely of placental mammals: whales, sea lions, and elephants, or koalas, wombats, and kangaroos?
What is whales, sea lions, and elephants?
200: Unlike other mammals, monotremes do not have these to feed their young.
What are nipples?
200: When inhalation occurs, the pressure inside the thoracic cavity does this.
What is decrease?
200: Placental mammals are born more developed because of the presence of this organ.
What is the placenta?
200: Mammals developed this kind of metabolism after the dinosaurs' extinction, helping them survive.
What is endothermic metabolism?
200: Convergent evolution between whales and sharks led to this shared feature.
What is a streamlined body shape?
300: After laying eggs, monotreme mothers feed their young in this unusual way.
What is secreting milk through the skin?
300: Rib muscles do this to help with inhalation.
What is expand the chest cavity
300: Which of the following is NOT exchanged across the placenta: oxygen, carbon dioxide, or digestive enzymes?
What are digestive enzymes?
300: What type of body shape is an aquatic mammal adaptation?
What is a streamlined body?
300: Placental mammals differ from marsupials mainly in what developmental way?
What is longer gestation inside the mother?
400: Name two examples of monotremes.
What are the platypus and echidna?
400: How do the respiratory and circulatory systems work together?
What is oxygen delivery and carbon dioxide removal?
400: What is the primary role of the placenta?
What is to nourish the developing embryo?
400: Some mammals, like armadillos, have this unusual outer covering.
What is armor?
400:This type of mammal gives birth to underdeveloped young that develop in a pouch.
What is a marsupial?
500: Monotremes differ from placental and marsupial mammals in what key reproductive trait?
What is external egg development?
500: Reptiles differ from mammals in breathing because they lack this structure.
What is a diaphragm?
500: Marsupial young continue development in this part of the mother's body.
What is the pouch?
500: Name one major advantage mammals had over dinosaurs after the mass extinction.
What is efficient lungs and diaphragm for respiration?
500: Which mammals lay eggs but nurse their young after hatching?
What are monotremes?