vocab
What are endothermic vertebrates that have hair, teeth, specialized for eating certain foods
mammals
sack like organ in which embryo develops; absorbs oxygen & food from mother’s blood
the placenta
placentals, marsupials, and monotremes are?
three types of mammals
Each animal has a different set of What?
teeth
all mammals reproduce how?
sexually
connects embryo to placenta, moves food & oxygen from placenta to embryo & removes waste
The umbilical cord
Placentals is the name for what organ?
placenta
monotremes do what?
They lay eggs with leathery shells
skin is What?
an organ
Who mostly cares for young?
Female
milk producing gland or females mammals used to feed young
a mammary gland
What connects the embryo to the placenta?
the umbilical cord
Mammals can_______ to a way of life.
adapt
When born, the fetus is what?
they are nearly helpless
period during which embryo develops; length of time vary among species
gestation period
the largest placental mammal
Whale
aquatic placental mammals have no feet but what?
modified flippers
Some mammals have this kind of hair to help sense the environment? specialy cats and seals
whiskers
young depends on mother's _____ when it is newborn
milk
mammal who’s offspring develops inside the female’s reproductive organ
placentals
Where does the embryo develop
female reproductive organ
marsupials have what?
external pouch
If a mammal has almost hair they most likely have what?
a layer of blubber
The young learn _____from the parents?
survival skills