Straighterline BIO 101 Exam 7 With Questions And Answers. [ Graded]

Straighterline BIO 101 Exam 7 With Questions And Answers. [ Graded]Question 1 Correct 2.00 points out of 2.00 Which of these parasitic worms is NOT a nematode? Select one: a. Ascaris b. Trichinella c. the worm that causes elephantiasis d. hookworm e. the worm that causes schistosomiasis The correct answer is: the worm that causes schistosomiasis Question 2 Correct 2.00 points out of 2.00 Why are real bath sponges so soft? Select one: a. The silica is washed away and the calcium carbonate remains. b. The spongin spicules are washed away and the silky silica remains. c. The choanocytes are softer and the amoebocytes are washed away. d. The harder silica or calcium spicules are absent and the softer spongin remains. e. The silica and spicules are washed away and the spongin treated with softening chemicals. The correct answer is: The harder silica or calcium spicules are absent and the softer spongin remains. Question 3 Correct 2.00 points out of 2.00 The segments of a tapeworm consisting primarily of eggs, which hang in bags as a long chain behind the head, are called Select one: a. proglottids. b. cercariae. c. sporocysts. d. scolexes. e. glycocalyxes. The correct answer is: proglottids. Question 4 Correct 2.00 points out of 2.00 Clams, snails, sea slugs, and octopuses belong to the phylum Select one: a. Annelida. b. Mollusca. c. Porifera. d. Platyhelminthes. e. Arthropoda. The correct answer is: Mollusca. Question 5 Correct 2.00 points out of 2.00 Which type of organism is characterized by having jointed appendages, ability to molt, and three sets of fused segments?