Answer:
Is a vicariance event
Explanation:
Even both terms are very similar, there is a difference. A dispersal event occurs when an initial specie travels from one place to another and due to the environmental factors and the adaptation that need to develop to survive will change into different species. In the other hand, the vicariance, is a process in which there is a specie and it lives in a wide are, but it fragments into groups mainly by the continental drift, so with the passing of time it turns into different characteristics, as the human race.
Ribosomes are small particles of RNA and protein which are found throughout the cytoplasm in all cells; they produce proteins by following coded instructions from DNA. They produce proteins through coded instructions that come from the nucleus of a cell.
Answer:
I think your question is poorly worded, just like all the parts are: a head and its flagellum, but within them we can distinguish several structures, which, in cephalad-caudal order (from head to tail, that is, from top down), son: acrosome, nucleus, membrane, neck, middle piece, tail and end piece.
Explanation:
Sperm are zygote cells that have half the genetic load, which is why when they join the ovum in fertilization, they form the complete genetics of the human.
In turn, the sperm has very efficient mechanisms for obtaining rapid energy, since they consume many ATP molecules when inoculating the ovum during fertilization.
They are formed by with the help of the sertoli cell, which sets the physiological state so that in the human testicle they are formed releasing in the male semen.
Animal bones contains minerals and so simmering them is generally believed to produce a broth that also contains minerals. Studies have demonstrated that calcium and magnesium levels in broth are generally related to cooking. but little is believed about the extraction of other elements, including toxic metals in broth.
