八年级生物上册 期中考试试题 苏教版 （Eight grade biology book on the midterm examination of Jiangsu ）.docVIP

八年级生物上册 期中考试试题 苏教版 (2)（Eight grade biology book on the midterm examination of Jiangsu (2)） The first semester of biology in grade eight The total score of ___________ First, single choice questions 1. The common reproductive ways of yeasts and Hydra in suitable environment are () A. vegetative reproduction, B. division, reproduction, C. budding, reproduction, D., sexual reproduction 2, heart planting flowers not open, no intention to insert willow willow shady.. Which asexual technology is used here? A. cutting, B. grafting, C. layering, D. tissue culture 3, sweet peach, peach flavor. The peach scion received Peach Rootstocks, fruit flavor (for) A. sweet, sour half B. sweet C., sour D. above are possible 4. When maize blossoms, the most favorable weather for pollination is () A. wind, drizzle, B. wind, heavy rain, C. continuous rain, D. breeze without rain 5. The major part of the seed is developed from which of the following structures A. egg cell B. bead is fertilized by C. ovary wall D. 6, there is a description of the peanut riddle is this: Ma house, red curtains, lived inside white fat. Please recall the relevant knowledge about fruit and seed formation, and analyze and judge which is the structure of the bast plant (pericarp) A. ovary B. ovule C. zygote D. ovary wall 7, in order to improve the survival rate of grafting, we should make () A. scion and rootstock cambium close together, B. scion and rootstock of wood closely together The phloem of C. scion and rootstock close together, and the conducting tissue of D. scion and rootstock are closely linked together 8. There are many seeds in the fruit of a watermelon, which indicates that the structure of its pistil is () A. a sub chamber, one ovule B., one ovule, multiple ovules C. has many ovaries, one ovule D., one locule, and no ovule 9. The starting point of frog and soybean ontogeny is respectively A. fertilized eggs, fertilized eggs, B. tadpoles, seeds, C. tadpoles, pollen grains, D. fertilized eggs, seeds