Birds And Mammals Flashcards

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1
Q

A bird’s nearly hollow bones help it to…

A

Be lightweight in the air

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2
Q

Birds play an important role in the environment by…

A

Carrying seeds to new locations

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3
Q

As a bird’s wing moves forward through the air, the air pressure on the wing is…

A

Is less above the wing than beneath it.

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4
Q

During soaring flight, a bird

A

Rises on a current of warm air

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5
Q

Which characteristic is NOT common to all mammals?

A

They are ectotherms, cold-blooded.

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6
Q

Fur is a adaptation that allows mammals to…

A

Survive in cold climates.

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7
Q

What characteristic is used to classify a mammal as a monotreme, marsupial, or placental mammal?

A

The way their young develops

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8
Q

A mammal’s gestation period is the length of time…

A

Between fertilization and birth

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9
Q

Birds are the only animals that have…

A

Feathers

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10
Q

What is the name of the upward force that enables a bird to fly?

A

Lift

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11
Q

Which type of flight requires the most energy?

A

Flapping

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12
Q

What is the function of down feathers?

A

To keep a bird warm

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13
Q

Some birds swallow small stones, which helps them to…

A

Grind food

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14
Q

Unlike most mammals, bats are able to…

A

Fly

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15
Q

Where do many birds store food that they are not ready to digest?

A

In the crop

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16
Q

The large muscle that enables mammals to breathe in and out is called the

A

Diaphragm

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17
Q

What are the four types of teeth mammals have?

A

K-9, incisors, pre-molars, & molars

18
Q

What is the function of K-9s in most mammals?

A

To stab and tear food

19
Q

What structure help birds get enough oxygen to fly?

A

Air sacs

20
Q

What type of mammal lays eggs?

A

Monotreme

21
Q

Want is an example of a monotreme?

A

Platypus, Perry.

22
Q

What type of fish is a lamprey and hagfish?

A

A jawless fish

23
Q

T or F:

All birds have hearts with four chambers.

A

True

24
Q

T or F:

Birds have contour feathers that are specialized to trap heat.

A

False.

Down feathers keep birds warm.

25
Q

T or F:

During flight, the air above the wing exerts less pressure than the air beneath the wing.

A

True

26
Q

T or F:

All mammals are endothermic vertebrates

A

True

27
Q

T or F:

Sharply pointed teeth that stab and food and cut into it are called incisors.

A

False

28
Q

T or F:

Marsupials mammals are born at a later stage of development than placental mammals.

A

False.

Earlier because they develop in their mother’s pouches.

29
Q

T or F:

The gestation period of marsupials is usually longer than that f placental mammals

A

False.
Shorter because marsupials develop outside of the mother.
They develop in her pouch.

30
Q

Birds have ………… feathers that give have to their bodies.

A

Contour

31
Q

A bird’s ………… squeezes and grinds food.

A

Gizzard

32
Q

Birds have …….. that connect to the lungs and increases the amount of oxygen birds can take in.

A

Air sacs

33
Q

A bird’s two-loop circulatory system is efficient at delivering …… to cells

A

Oxygen

34
Q

A large muscle called the ……. , which is located at the bottom of the ribs, helps mammals breathe.

A

Diaphragm

35
Q

The number of chambers in a mammal’s heart is …… .

A

Four

36
Q

Mammals have an insulating material called ……. beneath their skins.

A

Blubber

37
Q

Mammals that lay eggs are known as ……. .

A

Monotremes

38
Q

A group of mammals that only has three species is the ……. .

A

Monotremes

39
Q

Pregnant female monotremes and marsupials lack a ……., which is an organ that passes materials between an embryo and it’s mother.

A

Placenta

40
Q

Humans, monkeys, and apes belong to the group of placental mammals known as ……. .

A

Primates