The mammalian sperm cell consists of a head, a midpiece and a tail. The head contains the nucleus with densely coiled chromatin fibres, surrounded anteriorly by an acrosome, which contains enzymes used for penetrating the female egg.
I'm not entirely sure, but I think it is B) the pulley.
I'm not 100% percent on this but my class is working on cells and I believe it to bee either letter B. or D. to narrow it down for you
Homeostasis is a self-regulating technique by which systems
in the body maintain stability and tend to adjust to optimal conditions which
are essential for survival. Thereby, the role of homeostasis is to help the
body maintain constant internal environment. A good example of homeostasis
would be ‘drinking excess alcohol causes vomiting’.
The answer is 3 liters of total plasma volume
