The diagram shows a phase of mitosis. whatdoes the letter a represent in the diagram a) centriole b) chromosome c) centromere d) spindle

The right answer is Spindle.

In cell division, the mitotic spindle or achromatic mitotic apparatus of a cell refers to a structure of microtubules arranged in a spindle-shaped (i.e. swollen in the middle) bipolar assembly.

The achromatic spindle, meiotic spindle or mitotic spindle, is the set of microtubules that flow from the centrioles during the processes of cell division, whether mitosis (mitotic spindle) or meiosis (achromatic spindle or meiotic spindle), and range from centromeres of chromosomes to centrioles at the poles. They come from the centrosome (in the animal cell) or from the microtubule organizing center (in the plant cell). In the metaphase, all chromosomes are arranged in the equatorial plane of the dividing cell, and during anaphase, each of the two chromatids in which a chromosome is divided is driven to one of the two poles of the cell by said microtubules. The kinetochores are proteinaceous leaves located in the centromeres of the chromosomes in which the microtubules of the mitotic or achromatic spindle are anchored.

The correct answer is D. Spindle

Explanation:

just took the test from E D G E 2020

parasites can detrimentally affect their host, but also must not allow their host to die before they can complete their life cycle. some parasites have complex life cycles with many different hosts, and have had to find ways of persisting in many different environments during the change from one host to another. ectoparasites live outside the body of the host, and can more easily  disperse, but are  more exposed to predators, parasites, parasitoids. endoparasites live inside the body of the host, and are therefore protected from the outside environment. but they can be  attacked by the host's immune system. they have therefore developed  mechanisms for dispersal such as  complex life cycles.