as A heterosporous plant is one t that bears both antheridia and ar Prodses micr
ID: 3166125 • Letter: A
Question
as A heterosporous plant is one t that bears both antheridia and ar Prodses microsperes and megaspores, which sive rise to male and female gametophytes C) Prodwces s apores al year long instead of during just one sesson D) Produces two E) Reproduce only sexualy kinds of spores, one asesuaily by enitosis and the other sesually by maloss 19 Which of the following is NOT characteristic of nematodes? A) They play en important role in decomposition 8) They have both circular end longitudinal muacles. c) They have a peudocoelom D) They have an alimentary canal Many species ave parasitic. 20. What distinguishes complete metamorphouis from incoemplete metamorphosis in insects? A) presence of ses organs in the adult, but not in earlier life stages a) presence of wings in the aduilt, but not in earlier life stages C) redically different appearance between adults and earler life stages D) only A and 8 EJ A, B and C 21. Which of the following is NOT a shared characteristic of all chordates? A) Pharyngeal sits. B) post-anal tail. C) notochord, D) dorsal hollow nerve chord E) four-chambered heart Which is NOT characteristic of all mammals? A) a four-chambered heart that prevents mixing of oxygenated and deosygenated blood 8) giving birth to live young (viviparous) C) having hair during at least some period of life. D) having glands for produce nourishing milk for offspring. E) having a diaphragm to assist in ventilating the lungs 22. 23. Which of the following is a flagellated cell which sweeps water through a sponge's body? A) choanocyte B) ameobocyte C) archaeocyte D) neuron E) chondrocyten 24. Which one of the following is NOT a mammalian trait? A) mammary glands 8) relatively larger brains than other vertebrates C) a diaphragm D) a four-chambered heart E) live birthExplanation / Answer
Answer:
18) A heterosporous plant is one that B) produces microspores and megaspores, which give rise to male and female gametophytes - Correct Option (Explanation: spores can be male, small (micro) and female large (mega))
19) Which of the following is NOT characteristic of nematodes? B) They have both circular and longitudnal muscles - Correct Option (Explanation: nematodes only have longitudinal muscles)
20) What distinguishes complete metamorphosis from incomplete metamorphosis in insects? C) Radically different appearance between adults and earlier life stages - Correct Option
21) Which of the following is NOT the shared characteristic of all chordates? E) four-chambered heart - Correct Option (Explanation: four-chambered heart is not a shared characteristic of all chordates)
22) Which is NOT characteristic of all mammals? B) ) giving birth to live young (viviparous) - Correct Option (Explanation: monotremes lay eggs instead of live birth)
23) Which of the following is a flagellated cell which sweeps water through a sponge's body? A) Choanocyte - Correct Option (Explanation: choanocyte are flagellated cells in sponges)
24) Which one of the following is NOT a mammalian trait? E) Live Birth - Correct Option (Explanation: monotremes lay eggs instead of live birth)
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