Fatigue can have causes that aren't due to underlying disease. Examples include lack of sleep, heavy exertion, jetlag, a large meal, or aging.
Answer:
The function of the ovum is to carry the set of chromosomes contributed by the female and create the right environment to enable fertilization by the sperm. Ova also provide nutrients for the growing embryo until it sinks into the uterus and the placenta takes over
Explanation:
In my opinion I say 1 and 3 only or answer chose C
To see if the original results are reproducible
