16 Jun Describe three characteristics that sea stars have in common with humans
Question
Lab Qouestion ofKingdom Animalia: The Deuterostomes.
Question 1
A. Describe three characteristics that sea stars have in common with humans?
B. What observation might lead to a conclusion that the sea star was caught during the breeding
season? In your opinion, was your sea star caught during the breeding or non-breeding
season?
C Although sea stars are predators, they can also become prey for animals such as sharks, rays,
and giant triton snails. Describe one sea star adaptation that is useful for survival
Question 2 ( Frog)
A.What conclusions can be reached about frogs that have vocal sacs to make sounds?
B.Where does the Eustachian tube lead? How did you reach this conclusion?
C.During the dissection, you used your hands to follow the digestive tract anteriorly and
posteriorly. Outline the path that food takes through the frog’s digestive tract: start at the
mouth, indicate the major organs through which food passes, and end at the cloaca.
D.Make some assumptions about why the male frog has an oviduct. What does it mean that the
organ is “vestigial”?
E. List and describe the defining characteristics of chordates. Which of these characteristics
were present in your frog specimen? Which of these characteristics might be present in the
developing embryo or larval tadpole life phases?
Question 3
A.List 10 internal or external anatomical features that you observed in both the fish and frog
B.List 5 anatomical features that you observed in the frog but not the fish. Describe why each of
the features might not be present in the fish
B. List the kingdom, phylum, subphylum, and superclass to which humans belong. What
organism(s) did you dissect that also belong(s) to this series of classifications?
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