Answer:
complete your answer first
Derived from the inner cells of a human blastocysts , a very early human embryo.
At the blastocyst stage, five to 10 days after fertilization,
the embryo is a cluster of 100-200 cells
A) a common ancestor
Homologous structures are structures that are similar in related organisms. There is a basic pattern of bones which can be inherited from a common ancestor
I just don’t know how to do that but I’m not going back in the house now lol I’m going back in the bed and I just got a bed lol I’m going back in my shower and I’m just going to sleep now and I’ll be home soon I’m going back home I’m just going back to bed I’m tired I’m sleeping sleep well I love y’all so I’m just going back home now and I’ll let you know when I’m going to bed lol I’m tired of it but I just don’t know what I’m going back with you lol I’m just going
<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>