Answer:
B
Explanation:
when a sperm and an egg fuse
Answer:
photic zone.
Explanation:
it is a high layer of the water region. There is no land at the top of the water, if we plant the tree there, the shrub will drift into the water. There is Sufficient daylight but there is no ground.
Answer:
Spindle fibers move chromosomes during cell division by attaching to chromosome arms and chromosome centromeres. A centromere is a specific region of a chromosome where duplicated chromosomes are joined. The identical, joined copies of a single chromosome are known as sister chromatids. The centromere is also where specialized protein complexes called kinetochores are found.
Explanation:
The thoracic cage is formed by the 12 pairs of ribs with their costal cartilages and the sternum.
