Which is part of the spindle apparatus?
question 11 options:

aster fibers

centromere

chromatin

nuclear envelope

Aster fibers are the part of Spindle apparatus.

Explanation:

Spindle apparatus of a cell consists of motor protein, spindle fiber, chromosomes and aster fiber. Asters are considered part of the cytoskeleton, the structural component of the cell. Asters are made of microtubules, the largest of the three main cytoskeleton components (micro-filaments, intermediate filaments, and microtubules). Micro-tubules are made of tubulin. Asters are structures animal cells use during mitosis or meiosis, and the word aster comes from the Latin word for star.

the element that provides strength to the exoskeletons of clams and oysters is phosphorus.

this is so because calcium carbonate is the main component in the shells. calcium carbonate is strengthened by phosphorus.

explanation:

and after water is usually warmed by the sun the water temperature raises and then evaporates .