. (Circle the correct answer.) 9 When comparing the seeds of angiosperms and the
ID: 150139 • Letter: #
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. (Circle the correct answer.) 9 When comparing the seeds of angiosperms and the seeds of gymnosperms, a. gymnosperm seeds mature on the surface of a cone scale while angiosperm seeds are enclosed in a frut b. nutritive material accumulates prior to fertilization in angiosperms while nutritive material is stored after fertilization in gymnosperms c. nutritive material is stored after fertilization in angiosperms while nutritive material accumulates prior to fertilization in gymnosperms d. both a and b e. both a and c 10 How have seed plants influenced the development of humans? 384 Exploring Biology in the Laboratory xamples include water lily and sassafras. oth a and c th b and c. CHAPTER 24 The Green Machine Understanding the Seed Plants (Angiosperms) 415Explanation / Answer
Q.9ans:-(e) both a & c
Angiosperms are seed bearer , flowering , bisexual plants but
Gymnosperms are naked seeded, non flowering plant.
Angiosperms need a lot of nutritive material for forming the endosperm of their fruit, but gymnosperms don't have to do so, thus their nutritive material formed prior to fertilization.
10. Ans= Seed plant have coevolved with herbivores, & the process of cross fertilization ( which is very similar mechanism like sexual reproduction ) have helped very much in better evolution of human with great diversity & vitality.
Adaptation in adverse conditions by seeds which is very similar mechanism like hybernation in animals(human).
Thus,in this way seed plants have lead to the evolution of human.
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