Dissection

Mammal Groups

General Characteristics

Primates

Adaptations

Miscellaneous

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What is the function of the organ labeled x?

X

Diaphragm:

Expands and contracts the thoracic cavity; helps to

breathe

X

What is the organ labeled x?

Left Lung

x

What is the organ labeled x?

Trachea or esophagus

What is the organ labeled x?

x

Spleen

What is the organ labeled x?

x

Large Intestine/Colon

Manatees, Dugongs

Sirenians

Which of the following is not a monotreme:

PlatypusEchinda

Spiny Ant EaterBandicoot

Bandicoot

1. Most diverse group of mammals

2. Give an example of a member of that group

Rodenta

Rats, mice, voles, squirrels, beavers

What group does this mammal

belong in?

Xenarthran

Name the group. Give one unique

characteristic of group.

Chiropteran

Winged mammal, only mammal that can fly

Protection from environmental

factors

Hair/fur

Groups of organisms that

have a four-chambered heart

Birds, reptiles and mammals

Most mammals use this type of

fertilization

Internal fertilization

Difference in jaws between reptiles and

mammals

Jaws in reptiles are not fused; Mammals are

List three things about mammals that are not

found on other previously studied

organisms

Placenta, hair, mammary gland,

well developed brains, extensive

parental care

The diets of early primates consisted of

these types of organisms

Insects

Eyes close together in front of face allows for what type of vision?

Binocular vision

Which suborder does this primate

come from?

Prosimian

(pre monkeys)

Old world monkey

New world monkey

Hominid

Old World Monkey

Discovered in 1974 in East Africa (Give genus and

species)

Lucy (Australopithecus Australopithecus

afarensisafarensis))

Ability to walk up-right

Bipedalism

Allows for grip

Opposable thumb

Unique reproductive

characteristic of monotremes

Egg layers

Give two different types of teeth and

their different functions.

Canine and Incisors – Tearing

Molars or Premolars - Grinding

Give a unique characteristic of a

marsupials

They have a pouch used for birth.

Weight is distributed equally through all toes

Artiodactyl

What group do these mammals belong in?

Insectivora (insectivores)

These mammals have no nipples.

Monotremes

Long prehensile tails used for swinging is a characteristic of what

group?

New World Monkeys

Mammal with the shortest gestation period; mammal

with the longest period

American opossum and African

elephant