<p>Date ______Name ______Apologia Zoology 3 Chapter 2: Fill In</p><p>1. Circle all of the characteristics that belong to most mammals:</p><p> cold-blooded most lay eggs</p><p> vertebrates breathe through gills</p><p> warm-blooded most give birth to live young</p><p> invertebrates hunt for food for their babies</p><p> feed milk to their young breathe air</p><p>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</p><p>1 2 3 bones, while a reptile’s has </p><p>______bones.</p><p>3. Because reptiles do not have a hinged jaw, they cannot ______their food, making it hard for them to ______it.</p><p>4. The four types of teeth that mammals have are :</p><p>______</p><p>______</p><p>5. An animal’s teeth often can help us figure out what it ______. Date ______Name ______Apologia Zoology 3 Chapter 2: Fill In</p><p>6. Name the two layers of skin:</p><p>______</p><p>______</p><p>7. The ______bruises and bleeds, while the </p><p>______is the outer layer we see.</p><p>8. The actual upper layer of skin has ______on it, and often there is so much you can’t see the skin!</p><p>9. ______dead tissue</p><p>10. ______living tissue; has glands</p><p>______11. scent glands a. process by which the epidermis is cooled</p><p>______12. evaporation b. watery mixture</p><p>______13. sweat c. produce sweat</p><p>______14. glands d. release odors</p><p>______15. sweat glands e. make and release chemicals</p><p>16. The Latin word meaning flesh is ______.</p><p>17. Teeth designed to cut meat are called ______teeth.</p><p>18. Order Carnivora is broken into 2 4 6 groups.</p><p>19. Caniforms are ______-like.</p><p>20. Feliforms are ______-like. Date ______Name ______Apologia Zoology 3 Chapter 2: Fill In</p><p>21. Name three ways dogs can help people:</p><p>______</p><p>______</p><p>______</p><p>______</p><p>______</p><p>______</p><p>22. God created man and creatures with the ability to ______and </p><p>______.</p><p>23. Different species that are similar are all part of a same ______.</p><p>24. The information in DNA is stored in the form of ______. </p><p>25. A gene that is “stronger” than the other is called the recessive dominant gene.</p><p>26. Creatures have 2 3 4 of each gene.</p><p>These genes come from one’s ______.</p><p>27. ______selection says that the genes that are best for a region are what survive.</p><p>28. ______selection occurs when animals with specific traits are separated to create more animals with that same trait.</p><p>29. Dogs like to stay in groups known as ______.</p><p>30. A dominant pair consists of a(n)______and a(n) </p><p>______. Date ______Name ______Apologia Zoology 3 Chapter 2: Fill In</p><p>31.The order of the pack is determined by ______and </p><p>______.</p><p>32. Facial expressions and postures are used by dogs in </p><p>______. </p><p>33. Digitigrades walk on their two back legs toes heels</p><p>34. A dog’s most important sense is its sight smell hearing</p><p>35. The organs used in smelling are the ______organs.</p><p>36. Canines hunt in ______which helps it hunt down </p><p>______animals.</p><p>37. An animal that changes its way of living or habits to meet the changes in its</p><p> environment is called ______.</p><p>List 4 groups of canines and list at least 3 facts about each group you select:</p><p>Group ______</p><p>Facts </p><p>______</p><p>______</p><p>______</p><p>______</p><p>______</p><p>______Date ______Name ______Apologia Zoology 3 Chapter 2: Fill In</p><p>Group ______</p><p>Facts </p><p>______</p><p>______</p><p>______</p><p>______</p><p>______</p><p>______</p><p>Group ______</p><p>Facts </p><p>______</p><p>______</p><p>______</p><p>______</p><p>______</p><p>______Date ______Name ______Apologia Zoology 3 Chapter 2: Fill In</p><p>Group ______</p><p>Facts </p><p>______</p><p>______</p><p>______</p><p>______</p><p>______</p><p>______</p>