When the zygote attaches to the wall of the fallopian tube it is known as a ___________?*6 pointsstill birthmiscarriageectopic pregnancynone of the above

The answer is ectopic pregnancy. Here are the steps to understand why:

1. A zygote is the cell formed when two gametes (the sperm and the egg) have combined during fertilization.

2. Normally, the zygote travels down the fallopian tube and implants in the uterus, where it develops into a fetus.

3. However, if the zygote implants in the fallopian tube instead of the uterus, it is known as an ectopic pregnancy.

4. A stillbirth is when a baby is born dead after 24 weeks of pregnancy. It is not related to where the zygote implants.

5. A miscarriage is when a pregnancy ends on its own within the first 20 weeks. It is also not related to where the zygote implants.

6. Therefore, the correct answer is ectopic pregnancy.