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Unformatted text preview: 4. Which of the following is not a factor contributes to the dominance of angiosperms 100 mya? (2pts) a) angiosperms have simplified gametophytes compare to gymnosperms b) DNA modification creates various physiological characteristics for angiosperms c) genetic plasticity creates various morphological characters that helps angiosperms to adapt to different environment d) angiosperms have simplified sporophytes compare to gymnosperms 5. The male cones of conifers produce__ pollens ______; the mature female cones of conifers carries ___ seeds ____ on them. ( 1pt each)...
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- Spring '08