Subgroups
How many subgroups of Birds are there?
9
what is a keel?
Flat structure on the breastbone where wing muscles attach.
Which subgroup of Mammals lays eggs?
Monotremes
What do the two layers of fur on a mammal do?
Protection and Insulation
Which subgroups of birds have wider wings but are smaller so they cant fly through trees easier?
Perching Birds
What are contour feathers?
on the surface, allows flight.
How many animals are in the egg laying subgroup?
5
What are the specialized hairs on mammals called?
Whiskers or quills
Which group of birds has longer legs to help sit and wait for their prey?
Wading birds
what are down feathers
close to the skin, insulate.
Which subgroup has a pouch that nourishes and protects developing young?
Marsupials
What group has pairs of incisors that do not stop growing?
Rodents
what groups lives by the sea but rarely every goes in the water?
Shorebirds
what is a crop?
Stores food until digestion.
Which subgroup has a pouch that nourishes and protects developing young?
Marsupial
What group has the placenta?
Eutherians
What group is defined by being carnivore and have hooked beaks and strong talons?
Raptors
What is a syrinx
Voice organ
What does a placenta do?
Structure that allow nutrient exchange between the mother and embryo.
Do aquatic mammals have hair or fur?
bristles