Activity 76People, Birds, and Bats

Challenge: What kinds of evidence can you use to classify vertebrates?

Getting Started…

•How many types(classes) of vertebrates are there?

•After you discuss, look on page #30-31

5 Main Classes of Vertebrates

Warm Blooded VS Cold Blooded:

Warm

• Can regulate their body temperature to a fairly constant temperature by generating heat within their bodies.

• Does not mean they are literally always warm

Cold

• Body temperature is dependent on out side temperature

• Does not mean they are literally cold all of the time

Procedure:

• Read the procedure on page 24.

• Use the data table provided to try and classify each of the organisms given

•When you are finished, work with your group answering Analysis Questions #1

and 2.

LETTER CHARACTERISTICS CLASS(confused with)

NAME

Stirbridge

Kalmus

Murray Jones

FurBill like a duckLays eggs

Milk from mother

MammalBirdBird/ Fish/Reptile/Amphib

Mammal Tim

Thomaso

Phil

Thelma

Ruby Ritter

LETTER CHARACTERISTICS CLASS(confused with)

NAME

Stirbridge Bone on back, dry, sunning, lungs

Reptile(Amphibian)

geko

Kalmus Hair, sharp beak Bird (Mammal)

Kiwi

Murray Jones Fur, bill, lays eggs, feeds young with milk

Mammal (Bird)

Platypus

Tim Scales, hairy, warm blooded,

Mammal (Reptile)

Armadillo

Thomaso Babies from stomach, fins, gills

Fish (Mammal)

Seahorse

Phil No fins, breathes air, smooth skin

Amphibian(fish)

Sea Snake

Thelma Fly, wings, hair, Milk from mom

Mammal (Bird)

Bat

Ruby Riter scales, ok on land, fins Lungs/ gills

Fish (Amphibian)

Mudskipper

Analysis Question 1 (p. E-24)

Class Most important Characteristic:

Amphibian

Birds

Bony Fish

Mammal

Reptile

Analysis #2

• Some vertebrates appear to fit into two or more different classes because not every species in a class has every common characteristic of that class.

Example: Whales and dolphins do not have visible hair, yet hair is considered one of the traits that distinguishes mammals from the other classes.