Chapter 12, Problem 2RQ

What do scientists in the field of systematics accomplish? a. discover new fossil sites b. organize and classify organisms c. name new species d. communicate between field biologists

Monotremes include: kangaroos koalas bandicoots platypuses.

Why would you think twice about ordering from a restaurant menu that lists the specific epithet but not the genus name of its offerings? Hint: Look up Homarus americanus, Ursus americanus, Ceanothus americanus, Bufo americanus, Lepus americanus, and Nicrophorus americanus.

What can be inferred about the evolution of the cranium and the vertebral column from examining hagfishes and lampreys?

Which group of flatworms are primarily external parasites of fish? a. monogeneans b. trematodes c. cestodes d. turbellarians

Explain why frogs are restricted to a moist environment.

Which of the following is not a member of the phylum Chordata? a. Cephalochordata b. Echinodermata c. Urochordata d. Vertebrata

Figure 27.9 Which of the following statements about diploblasts and triploblasts is false? Animals that display radial symmetry are diploblasts. Animals that display bilateral symmetry are triploblasts. The endoderm gives rise to the lining of the digestive tract and the respiratory tract. The mesoderm gives rise to the central nervous system.

Squamata includes. crocodiles and alligators turtles tuataras lizards and snakes