Crossword Puzzle Reproduction End of Topic CrosswordOnline version Key concepts in year 7 reproduction. by Mrs E Brinkley 1 The period during which an embryo develops into a baby. 2 The cycle in which uterus prepares for a pregnancy each month. 3 When the nuclei of two gametes fuse to produce a zygote. 4 The time during which a young person undergoes emotional and physical changes. 5 The transfer of pollen from anther to stigma. 6 When a seed starts to grow. 7 Transport of seeds away from a plant. 8 An intimate act by which a baby may or may not be made. 9 The attachment of an embryo to the uterus wall. 10 The release of semen from the penis. 8 5 2 10 6 9 1 3 4 7
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