D3.1

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Across
  1. 2. A plant that possesses both male and female reproductive organs.
  2. 5. A mechanism where a change triggers an increase in the same direction, like the LH surge.
  3. 8. Female hormone that stimulates the thickening of the uterine lining during the menstrual cycle.
  4. 12. The internal lining of the uterus where an embryo implants.
  5. 14. The release of a mature egg from the ovary into the fallopian tube.
  6. 19. The movement of seeds away from the parent plant to reduce competition.
  7. 21. Hormone that triggers ovulation in the middle of the menstrual cycle.
  8. 22. The primary male sex hormone produced by the testes that triggers sperm production.
  9. 23. The fusion of male and female gametes to form a new organism.
  10. 24. A biochemical mechanism that prevents a plant from fertilizing itself.
  11. 27. The process by which a seed develops into a new plant under right conditions.
Down
  1. 1. An abiotic agent used by plants like grasses to disperse lightweight pollen.
  2. 3. Hormone produced by the corpus luteum that maintains the endometrium for pregnancy.
  3. 4. A specialized organelle in sperm containing enzymes to penetrate the egg's jelly coat.
  4. 6. The male gamete, which is small, motile, and produced in large numbers.
  5. 7. The female gamete, also called an ovum, which is large and non-motile.
  6. 9. Reproduction involving the fusion of two haploid gametes to create genetic variation.
  7. 10. A haploid sex cell such as a sperm or an egg.
  8. 11. The first stage of IVF where drugs are used to stop the natural menstrual cycle.
  9. 13. The process of fertilizing an egg outside the body in a lab.
  10. 15. A regulatory mechanism where the result of a process inhibits its own production.
  11. 16. Reproduction involving a single parent resulting in offspring that are genetically identical clones.
  12. 17. Different _____ timing of pollen release and stigma receptivity to prevent selfing.
  13. 18. The transfer of pollen from the anther of one plant to the stigma of another.
  14. 20. Reduction division that produces four haploid daughter cells from one diploid cell.
  15. 25. Hormone which which stimulates the development of primary follicles in the ovaries.
  16. 26. The diploid cell produced by the fusion of a sperm and an egg.