Had to look for the options and here is my answer:
Drosophila is considered as a specie of flies, often known as "fruit flies". In their development, the influence of the bicoid protein differs along the axis of the embryo because of the presence of <span>an anterior to the posterior gradient in BICOID protein concentration in the embryo. Hope this helps.</span>
Answer: Vascular Tissue is the circular system of plants. It distributes water and food throughout the plant and removes waste through the roots and stomata. The vascular tissue is composed of two transport systems: xylem and phloem.
A germ-line mutation in one of the genes implicated in the cancer occurred in an ancestor.