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Zoology 3 - apologia > Lesson 2 > Flashcards

Lesson 2 Flashcards

1
Q

What characteristics do mammals have?

A

Mammals have vertebrae, are endothermic, breathe oxygen from the air, nurse their young with mother’s milk, and have hair.

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2
Q

How can you tell the skull of a mammal from the skull of a reptile?

A

Mammals have a lower jaw made of only one bone, while the lower jaw of a reptile is made up of several bones. Also, in reptiles, the joint that connects the lower jawbone allows it to open & close only. In mammals, that joint allows it to not only open & close, but also move from side to side.

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3
Q

Which sense does a dog use the most?

A

It uses its sense of smell most.

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4
Q

What are some of the ways dogs communicate?

A

Dogs communicate with scent, body postures, and facial expressions.

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5
Q

What four major kinds of teeth do mammals have?

A

incisors, canines, premolars, molars

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6
Q

How many of each gene do you have?

A

two of each gene

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7
Q

Where did you get your genes?

A

One from your mother & one from your father

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8
Q

If a gene is recessive, what does that mean?

A

it means the gene will be masked by the dominant gene if it is present.

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9
Q

How does a pack of dogs usually hunt prey?

A

They work to separate one straggler from the rest, and they chase it until it falls.

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10
Q

What do we call the male leader of a pack?

A

the alpha male

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11
Q

What do we call the female leader of a pack?

A

the alpha female

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12
Q

Why are wolves so rare today?

A

They have been hunted almost to extinction & squeezed out by cities.

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13
Q

What is a digitigrade?

A

An animal that walks on its toes

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14
Q

This type of gene will win; its information will be used

A

dominant

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15
Q

The form in which DNA stores information

A

genes

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16
Q

A molecule that exists in every living creature and stores information that helps the creature be what it is supposed to be

A

DNA

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17
Q

Glands that produce and release a water-based mixture we call sweat

A

sweat glands

18
Q

the outer layer of skin that has hair on it

A

epidermis

19
Q

a carnivore’s molars and premolars that are specially designed to cut meat

A

carnassial teeth

20
Q

mammals’ teeth used for grinding, right behind the canine teeth

A

premolars

21
Q

mammals’ teeth used for tearing and gripping

A

canines

22
Q

a group on order Carnivora that contains dog-like animals

A

caniforms

23
Q

organs in the body that make and release chemicals

A

glands

24
Q

mammals’ teeth used for cutting

A

incisors

25
Q

an order in the animal kingdom that contains many of the ferocious predators

A

carnivora

26
Q

mammals’ teeth (in the very back of the mouth) used for grinding

A

molars

27
Q

the layer of skin under the epidermis; it gets bruised and bleeds

A

dermis

28
Q

this gene will not be used when the dominant gene is present

A

recessive

29
Q

glands that release odors

A

scent glands

30
Q

a group in order Carnivora that contains cat-like animals

A

feliforms

31
Q

to break down food so it can be turned into energy

A

digest

32
Q

A species of wolf that is thriving. They are night hunters & are often alone.

A

Coyotes

33
Q

Organs of smell

A

olfactory organs

34
Q

Living only in Japan, this dog looks like a large raccoon.

A

Raccoon dog

35
Q

A type of canine. They have been pests for livestock farmers & a source of fear for travelers at night.

A

Wolves

36
Q

A fox that lives in the arctic regions of the northern hemisphere.

A

Arctic Fox

37
Q

A canine that is very social and is often called the “painted wolf.”

A

African Wild Dog

38
Q

The two leaders (female & male) in a group of animals.

A

dominant pair

39
Q

Australian canines that were once pet dogs owned by Indonesian traders who fished in the waters of Australia thousands of years ago.

A

Dingoes

40
Q

When an animal changes its diet to fit changes in its surroundings we call it an _________ feeder.

A

opportunistic

41
Q

An opportunistic omnivore that can live in cities. it looks like a small wolf with really big ears.

A

Jackals

42
Q

An opportunistic canine that can eat anything, although it prefers small animals.

A

Red Fox

Zoology 3 - apologia (15 decks)

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