Mammals

<p>Monotreme mammals</p> Signup and view all the answers

<p>They carry their young in a pouch</p> Signup and view all the answers

<p>Placental mammals</p> Signup and view all the answers

<p>They eat mostly meat</p> Signup and view all the answers

<p>Reptiles</p> Signup and view all the answers

<p>Large lungs for efficient respiration</p> Signup and view all the answers

<p>Four</p> Signup and view all the answers

<p>Hair and milk production</p> Signup and view all the answers

<p>They give birth to barely formed offspring and have a pouch for further development</p> Signup and view all the answers

<p>To allow diffusion of nutrients and oxygen from the mother's blood to the developing fetus</p> Signup and view all the answers

<p>Carnivores eat only meat, while omnivores eat both plants and animals</p> Signup and view all the answers

<p>Therapsids</p> Signup and view all the answers

<p>Secreting milk for young</p> Signup and view all the answers

<p>Triassic period</p> Signup and view all the answers

<p>Prototheria</p> Signup and view all the answers

<p>They give birth to well-formed offspring</p> Signup and view all the answers

<p>To provide nutrients and waste exchange between the mother and the developing young</p> Signup and view all the answers

<p>Elephant, Cat, Dog</p> Signup and view all the answers

<p>Lay eggs and have a pouch to carry their eggs = Monotreme Mammals Have a placenta for nourishing the developing fetus = Placental Mammals Give birth to relatively undeveloped young and carry them in a pouch = Marsupial Mammals Regulate and maintain constant internal body temperature = All Mammals</p> Signup and view all the answers

<p>Blubber, large lungs, external ears, specialized teeth = All Mammals Lay eggs and produce milk to nourish their young = Monotreme Mammals Have a pouch to carry and nurse their young = Marsupial Mammals Have a placenta for nourishing the developing fetus = Placental Mammals</p> Signup and view all the answers

<p>Late Permian period = Therapsids were very abundant Triassic period = The first mammals appeared 65 million years ago = Dinosaurs became extinct and mammals took over ecological roles Present = Mammals inhabit a wide range of habitats on land and water</p> Signup and view all the answers

<p>Monotreme = Lay eggs and do not have nipples Marsupial = Give birth to barely formed offspring and have a pouch for further development Placental = Carry unborn young in the uterus until they can survive, with the help of a placenta Eutheria = Belongs to the subclass of Placental mammals</p> Signup and view all the answers

<p>Platypus = Monotreme Kangaroo = Marsupial Elephant = Placental Human = Eutheria</p> Signup and view all the answers

<p>Monotreme = Lay eggs Marsupial = Give birth to barely formed offspring Placental = Carry unborn young in the uterus until they can survive</p> Signup and view all the answers

<p>Monotreme = Young oozes milk from glands located from the mother's belly Marsupial = Babies feed on mother's milk from the belly pores Placental = Baby in the womb gets nourishment from the mother's diet via the umbilical cord</p> Signup and view all the answers