Birds and mammals test

Question 1

What is preening

Answer 1

The act of grooming and maintaining their feathers. It put oil on their bodies and it cleans them

Question 2

What is molting

Answer 2

The shedding of feather and getting new ones.

Question 3

What are down feathers and what is their purpose

Answer 3

Fluffy feathers that lie next to the birds skin. They keep the bird warm

Question 4

What are contour feathers and what is their purpose

Answer 4

Stiff feathers that cover that a birds and wings. They help attract mates and fly

Question 5

What is a keel

Answer 5

Large breast bone (big muscles have to connect to big bones)

Question 6

What are air sacs

Answer 6

They are sacs attached to the lungs that store air and they give a constant supply of oxygen

Question 7

What is lift

Answer 7

An upward force on an object that moves in a fluid

Question 8

What is brooding

Answer 8

To sit on and cover their eggs to keep them warm until they hatch

Question 9

What is precocial

Answer 9

The chicks are active after they hatch

Question 10

What is altricial

Answer 10

Chicks aren’t active after they hatch

Question 11

What is a mammary gland

Answer 11

In females it’s a gland that secretes milk

Question 12

What is a diaphragm

Answer 12

A large muscle that helps bring air into the lungs and functions as the main muscle in respiration

Question 13

What is fur

Answer 13

Fur is a type of hair that is much thicker and it is on mammals in cold climates so they stay warm

Question 14

What is blubber

Answer 14

Thick layer of fat on mammals in cold areas to help them stay warm

Question 15

What incisors, canines, and molars for.

Answer 15

Incisors- cutting
Canine- stabbing
Molars-grinding

Question 16

What is a placental mammal

Answer 16

A mammal whose embryo develops inside the mothers body

Question 17

What is the gestation period

Answer 17

The time between fertilization and birth

Question 18

What is echolocation

Answer 18

Using echos to find things

Question 19

What are pinnipeds

Answer 19

Fish eating mammals

Question 20

What is a hoof

Answer 20

A thick hard pad that covers mammals toe

Question 21

What is a cetacean

Answer 21

Mammals that live in water

Question 22

What is a monotremes

Answer 22

A mammal that lays eggs

Question 23

What is a marsupial

Answer 23

A mammal that carries and nurses young in a pouch

Question 24

What are the four distinguishing characteristics of birds

Answer 24

Horny beak
Hard egg shell
Endotherm
Feathers and wings

Question 25

What are the four types of birds. Give an example and distinguishing characteristic of each

Answer 25

Water birds-webbed feet or long legs, beak is rounded, flat beaks or long sharp beaks
Ex. Ducks
Raptors- Sharp claws, very strong feet. Hooked beaks
Ex. Eagles
Perching Bird- strong feet that grip the perch, also called song bird
Ex. Crows
Flightless bird- don’t have a big keel, skeletal structure
Ex. Penguins

Question 26

What are distinguishing characteristics for mammals

Answer 26

Hair, milk, teeth, and large brain

Question 27

What are the eleven types of placental mammals. What are their distinguishing characteristics and give one example

Answer 27

1.Anteaters, armadillos, and sloths-Special connection between vertebrates, and they are toothless.
2.insectivores- nose is long and pointed that help smell their prey, small brains, simple teeth. Ex. Moles
3.Rodents- One set of incisors and they grow continually
Ex. Mice
4. Rabbits, hares, pikas- 2 sets of incisors, tails are shorter than rodents
5.Flying mammals- bats, echolocation
6. Carnivores- large canine teeth and special molar teeth,
Ex. Bear, seals
7. Trunk nosed mammals- elephants, trunk is combo of upper lip and nose
8.hoofed mammals-hoof, large flat molars, odd toed or even toed
Ex. Donkey
9. cetaceans- live in water , echolocation. Ex. Dolphin
10. Manatees and dugongs-swim slowly, eat mostly plants
11. primates- five fingers and toes, flat finger nails,larger brain for its size, forward facing eyes, thumbs. Ex. Monkeys

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Question 28

Why can a bird fly and a human can’t

Answer 28

Keel- big muscles can attach to it.
Flight muscles- move the wings, attached to keel
Rapidly beating heart- hives a constant supply of oxygen rich blood