Question
Give examples to prove that microbes release gases during metabolism.
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OR
Explain the role of flocs in sewage treatment.| IVF and ET | A |
| B | lntroduction of zygote or embryo with 8-celled blastomeres into Fallopian tube. |
| C | lntroduction of ova of a donor into the Fallopian tube. |
| D | lntroduction of semen from the husband or healthy donor into the uterus. |