If the sperm gametes that fertilizes an egg has an XX chromosomes, it will form female offspring. X is a female, XY is a female, Y is a male and XX is a female.
The answer to this question would be: increased food height
Giraffe becomes tall because its food height is increased. In this case, the environmental pressure on Giraffe would be the increased height of the food.
The taller giraffe has access to higher food. Then, the giraffe with the higher chance of survival in this scenario would be the giraffe with a taller height.
<span>During ejaculation, the sperm is sent out from the epididymis into the deferent duct which then travels up the spermatic chord into the pelvic cavity. The first organ that sperm pass through is the epididymis ejaculatory duct . During this time rhythmic movements propel the sperm forward.</span>
