have a baby. Mother carries the baby. In vitro Uses the Babies often fertilisation mother born and prematurely fathers which can own sex cause cells problems Natural mother carries the baby Use of Allows a Handing the surrogate couple to baby over mothers have a can cause baby who problems otherwise may not be able to. Use of Helps the Some women hormones woman react badly to conceive the naturally. hormones. Babies often born prematurely which can cause problems. Often results in multiple births. XX XY . A response to changing day length Reproduction, growth, germination A biological rhythm that takes place over about a day Water, urea, carbon dioxide Breakdown of Amino Acids Dialysis, transplant Takes a long time, expensive .
have a baby. Mother carries the baby. In vitro fertilisation Uses the mother and fathers own sex cells Natural mother carries the baby Babies often born prematurely which can cause problems Use of surrogate mothers Allows a couple to have a baby who otherwise may not be able to. Handing the baby over can cause problems Use of hormones Helps the woman conceive naturally. Some women react badly to the hormones. Babies often born prematurely which can cause problems. Often results in multiple births. XX XY . A response to changing day length Reproduction, growth, germination A biological rhythm that takes place over about a day Water, urea, carbon dioxide Breakdown of Amino Acids Dialysis, transplant Takes a long time, expensive .
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