Date ______Name ______Apologia Zoology 3 Chapter 2: Fill In

1. Circle all of the characteristics that belong to most mammals:

cold-blooded most lay eggs

vertebrates breathe through gills

warm-blooded most give birth to live young

invertebrates hunt for food for their babies

feed milk to their young breathe air

2. Looking at a skull of an animal, you could tell if it was a skull of a mammal or a reptile because of its ______. A mammal’s has

1 2 3 bones, while a reptile’s has

______bones.

3. Because reptiles do not have a hinged jaw, they cannot ______their food, making it hard for them to ______it.

4. The four types of teeth that mammals have are :

______

______

5. An animal’s teeth often can help us figure out what it ______. Date ______Name ______Apologia Zoology 3 Chapter 2: Fill In

6. Name the two layers of skin:

______

______

7. The ______bruises and bleeds, while the

______is the outer layer we see.

8. The actual upper layer of skin has ______on it, and often there is so much you can’t see the skin!

9. ______dead tissue

10. ______living tissue; has glands

______11. scent glands a. process by which the epidermis is cooled

______12. evaporation b. watery mixture

______13. sweat c. produce sweat

______14. glands d. release odors

______15. sweat glands e. make and release chemicals

16. The Latin word meaning flesh is ______.

17. Teeth designed to cut meat are called ______teeth.

18. Order Carnivora is broken into 2 4 6 groups.

19. Caniforms are ______-like.

20. Feliforms are ______-like. Date ______Name ______Apologia Zoology 3 Chapter 2: Fill In

21. Name three ways dogs can help people:

______

______

______

______

______

______

22. God created man and creatures with the ability to ______and

______.

23. Different species that are similar are all part of a same ______.

24. The information in DNA is stored in the form of ______.

25. A gene that is “stronger” than the other is called the recessive dominant gene.

26. Creatures have 2 3 4 of each gene.

These genes come from one’s ______.

27. ______selection says that the genes that are best for a region are what survive.

28. ______selection occurs when animals with specific traits are separated to create more animals with that same trait.

29. Dogs like to stay in groups known as ______.

30. A dominant pair consists of a(n)______and a(n)

______. Date ______Name ______Apologia Zoology 3 Chapter 2: Fill In

31.The order of the pack is determined by ______and

______.

32. Facial expressions and postures are used by dogs in

______.

33. Digitigrades walk on their two back legs toes heels

34. A dog’s most important sense is its sight smell hearing

35. The organs used in smelling are the ______organs.

36. Canines hunt in ______which helps it hunt down

______animals.

37. An animal that changes its way of living or habits to meet the changes in its

environment is called ______.

List 4 groups of canines and list at least 3 facts about each group you select:

Group ______

Facts

______

______

______

______

______

______Date ______Name ______Apologia Zoology 3 Chapter 2: Fill In

Group ______

Facts

______

______

______

______

______

______

Group ______

Facts

______

______

______

______

______

______Date ______Name ______Apologia Zoology 3 Chapter 2: Fill In

Group ______

Facts

______

______

______

______

______

______