1. Chapter 34 Intro to Animals
Image from:

2. Animals Invertebrates (animals without a backbone) Porifera Cnidaria
Worms
Mollusks
Echinoderms Arthropods

3. Animals Vertebrates- Animals with backbones Fish Amphibians Reptiles
Birds Mammals

4. Animal Groups
Image from:

5. Characteristics of ALL Animals:
EUKARYOTES
Are ____________________
cells have nucleus & membrane bound organelles
2. Are ____________________
get food from consuming other organisms
3. Are ____________________
made of many cells
4. Show __________________
different kinds of cells do different jobs
HETEROTROPHIC
MULTICELLULAR
SPECIALIZATION

6. Characteristics of ALL Animals:
MOVE
5. _____________ (at some point in life cycle)
for food, find mates, escape danger
Contain _____________
which carries the genetic code
7. ____________________
Make offspring
Most have sexual reproduction (few asexual)
DNA
REPRODUCE

7. 10 Body Systems : INTEGUMENTARY 1. _____________________
OUTSIDE BODY COVERING (fur, skin, scales, feathers)
INTEGUMENTARY
Covers and protects, ID, prevents heat & water loss

8. 10 Body Systems : DIGESTIVE 2. _________________ Breaks down food to
obtain nutrients & gets rid of undigested waste
Image from:

9. NO OPENINGS: Food enters through skin

10. Only one opening: FOOD IN and WASTE OUT through same opening
Images from:
Only one opening: FOOD IN and WASTE OUT through same opening

11. FOOD IN at one end (mouth) WASTE OUT at other end (ANUS)
Image from:
Two openings:
FOOD IN at one end (mouth) WASTE OUT at other end (ANUS)

12. Two openings: Most efficient
Image from:
Two openings: Most efficient
If food flows only one direction it allows for organ specialization
(Different parts can start to do different jobs)

13. 10 Body Systems : CIRCULATORY 3. __________________
Transports nutrients/oxygen to body cells
Carries carbon dioxide/nitrogen waste away from cells
Circulatory fluid can be:
inside blood vessels = _________ loose inside body spaces = _______
CIRCULATORY
CLOSED
OPEN

14. 10 Body Systems : RESPIRATORY Exchange gases with the environment
4. ___________________
RESPIRATORY
Exchange gases with the
environment
take in oxygen
get rid of waste gases (CO2 &/or ammonia)
Image from:

15. 10 Body Systems : Get rid of nitrogen waste made by cells
5. ___________________
Get rid of nitrogen waste made by cells
Help with HOMEOSTASIS by maintaining water/ion balance
(_________________________)
EXCRETORY
OSMOREGULATION

16. 10 Body Systems : SKELETAL 6. ___________________
Framework to support body/protection
Skeleton on inside = _______________ Skeleton on outside = _______________
ENDOSKELETON
EXOSKELETON

17. 10 Body Systems : MUSCULAR 7. _______________
Locomotion- move body itself OR
move substances through body (EX: food through digestive system; blood through vessels)

18. 10 Body Systems :
8. _____________________ - Produce offspring by combining genetic material from 2 parents = __________________________
REPRODUCTIVE
SEXUAL REPRODUCTION
Produce offspring using genetic material from only 1 parent =_____________________________
ASEXUAL REPRODUCTION

19. External fertilization
Sperm and egg join
outside female’s body = ___________________
inside female’s body = ____________________
External fertilization
Internal fertilization

20. NERVOUS 9. ___________________
Receive sensory info about environment &
send response signals
NERVOUS

21. ENDOCRINE
10. __________________
Make hormones that regulate other body systems
(only in higher animals)

22. ALL WASTE is NOT THE SAME!
DIGESTIVE WASTE
NITROGEN WASTE
WHERE ITS MADE?
Body system used?
In what form?
made by cells from break down of proteins
left over from undigested food
Handled by digestive system
Handled by
excretory system
Feces (poop)
ammonia, urea, or uric acid

23. Kinds of Symmetry
No symmetry
Radial symmetry
Bilateral symmetry

24. ___________________ No symmetry
ASYMMETRY
___________________ No symmetry
Doesn’t matter how you cut it; you never get 2 identical halves.

25. _______ Symmetry
Radial
Get 2 identical halves in several directions.

26. Bilateral ___________ Symmetry
If divide animal down the middle you get 2 mirror images
BUT only divides equally in ONE direction

27. Which way is up? DORSAL (top) ANTERIOR head end POSTERIOR tail end
VENTRAL (underneath)

28. ________________ CEPHALIZATION
Concentration of nervous tissue and sensory organs in anterior end of an organism (head area)