|Chapter 28 - Reading Guide||Name _____________________________|
1. Animals are [ heterotrophs / autotrophs ]
2. [ All / Most ] animals are multicellular.
3. The cells in the skin of your hand are [ bigger than / the same size as ] the cells in your heart.
4. Organisms that have 2 copies of each chromosome are [mobile / diploid ]
5. The absence of a cell wall allows animals [ mobility / diploidy ]
6. A hollow ball of cells that forms after fertilization is called a [ blastula / mesoderm ]
7. In all animals except [ humans / sponges ] a zygote undergoes divisions to become a blastula.
8. The cells of animals are organized into functional units called [ blastula / tissues ]
Match the tissue layer to the part of the body it becomes
|9. ______ Ectoderm
10. ______ Mesoderm
11. ______ Endoderm
|a. lining of the digestive tract, digestive organs
b. outer layer of skin and sense organs
c. most of the skeleton, muscles
Match the body plan to its description
|12. ____ radial
13. _____ bilateral
14. _____ asymmetry
|a. body parts arranged around a central axis, like the spokes
of a bicycle wheel
b. body that is irregular shaped
c. has a distinct right and left half
What symmetry do these animals have?
17. Segmented animals are constructed from a series of repeating units called [ segments / vertebrates ]
18. Evidence of segmentation in human beings can be seen in the [ skin / backbone ]
Match the name of the Phylum to the organism (figure 28-12)
|19. _____ Cnidaria
20. ______ Mollusca
21. _____ Annalida
22. _____ Chordata
25. ______ Porifera
b. segmented worms
e. sea stars
28. A [ phylogenetic tree / kingdom ] shows how animals are related through evolution
29. Cues to animal relationships can be found in the [ class / fossil ] record.
30. Studies of [ fossils / DNA ] showed that pandas are more closely related
to bears than to raccoons.