Questions: 1. If you discover a new organism that is ectothermic, contains lungs to breathe and has scales, in which category of vertebrates should you classify the new organism? 2. If you find an organism that has a 4-chambered heart and fur, in which category of vertebrates should you classify the new organism? 3. Which organisms start out with gills but have lungs as adults? 4. Which group of organisms give birth to live young? 5. If you find an organism with a 2-chambered heart, in which category of vertebrates should you classify the organism?

Essentials Of Human Development
1st Edition
ISBN:9781285647357
Author:Kail
Publisher:Kail
Chapter3: Tools For Exploring The World: Physical, Perceptual, And Motor Development
Section3.2: Physical Development
Problem 10TY
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FISH
AMPHIBIANSS REPTILES
BIRDS
МАММALS
Gills when young
then lungs as
Breathing
Gills
adults. Adults
Lungs
Lungs
Lungs
breathe through
their skin.
Body Covering
Smooth, moist skin
Scales
Fur over soft skin
Scales
Feathers
Most lay jelly-
Live birth & feed
Soft, leathery-
shelled eggs
Reproduction
like eggs
Lay jelly-like eggs
Hard shelled
young milk from
eggs
mammary glands
Heart
2-chambers
3-chambers
3-chambers
4-chambers
4-chambers (very
(very efficient)
efficient)
Temperature
Ectothermic
Ectothermic
Ectothermic
Endothermic
Endothermic
Regulation
Questions:
1. If you discover a new organism that is ectothermic, contains lungs to breathe and has
scales, in which category of vertebrates should you classify the new organism?
2. If you find an organism that has a 4-chambered heart and fur, in which category of
vertebrates should you classify the new organism?
3. Which organisms start out with gills but have lungs as adults?
4. Which group of organisms give birth to live young?
5. If you find an organism with a 2-chambered heart, in which category of
vertebrates should you classify the organism?
6. Which group lays leathery-shelled eggs?
7. If you find an organism that has scales, what are some other characteristics
you should look for to determine whether it is a fish or a reptile?
8. Which group sof organisms are the most complex?
How
do you know this?
9. Think About It: "Ecto" means external (outside) and "endo" means internal (inside), so what
do you think ectothermic means?
Transcribed Image Text:FISH AMPHIBIANSS REPTILES BIRDS МАММALS Gills when young then lungs as Breathing Gills adults. Adults Lungs Lungs Lungs breathe through their skin. Body Covering Smooth, moist skin Scales Fur over soft skin Scales Feathers Most lay jelly- Live birth & feed Soft, leathery- shelled eggs Reproduction like eggs Lay jelly-like eggs Hard shelled young milk from eggs mammary glands Heart 2-chambers 3-chambers 3-chambers 4-chambers 4-chambers (very (very efficient) efficient) Temperature Ectothermic Ectothermic Ectothermic Endothermic Endothermic Regulation Questions: 1. If you discover a new organism that is ectothermic, contains lungs to breathe and has scales, in which category of vertebrates should you classify the new organism? 2. If you find an organism that has a 4-chambered heart and fur, in which category of vertebrates should you classify the new organism? 3. Which organisms start out with gills but have lungs as adults? 4. Which group of organisms give birth to live young? 5. If you find an organism with a 2-chambered heart, in which category of vertebrates should you classify the organism? 6. Which group lays leathery-shelled eggs? 7. If you find an organism that has scales, what are some other characteristics you should look for to determine whether it is a fish or a reptile? 8. Which group sof organisms are the most complex? How do you know this? 9. Think About It: "Ecto" means external (outside) and "endo" means internal (inside), so what do you think ectothermic means?
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The living organisms are classified into different categories according to their characteristics. The kingdom animalia is divided into different phylums depending on their characteristics.

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