Answer: C). A biozone can help trace the path of evolution over time.
Biozone is a stratigraphic unit which contains fossils in layers of strata existed in a particular geologic period. It is named as biozone because it depicts the number of biological taxa existed in particular strata. Therefore, the variation in features within taxonomic groups in biozones can give indication of evolution with respect to time.
The correct answer is fallopian tube.
The fallopian tube, also known as uterine tube or oviduct, carries the egg from ovary to the uterus.
The fallopian tube has finger-like projections or branches called fimbriae which reach out into the pelvic cavity and pick up an egg that has been released from the ovary.
The egg is tenderly brought into the fallopian tube where it begins to travel to the uterus.
The fallopian tube also serves as the location where fertilization of the egg by a sperm cell occurs.
D) long chains of amino acids used for building, repair and maintenance
A primary oocyte residing in a primordial follicle becomes a secondary oocyte "in the vesicular follicle".
