Properties of a pure substance are constant because the structure of the pure substance is not varying.
Hope this helps!
It will help you.
~~~~~~~~~~~~~~~~~
Offspring of a mushroom or mold asexual reproduction its compare to identical its parents.
Answer is A.
In metaphase I, the homologous pairs of chromosomes align on either side of the equatorial plate. Then, in anaphase I, the spindle fibers contract and pull the homologous pairs, each with two chromatids, away from each other and toward each pole of the cell. During telophase I, the chromosomes are enclosed in nuclei.
