Imagine looking through a microscope at a squashed onion root tip. the chromosomes of many of the cells are plainly visible. in some cells, replicated chromosomes are aligned along the center (equator) of the cell. these particular cells are in which stage of mitosis?

Metaphase.

Explanation:

Metaphase may be defined as the stage of the cell cycle followed after the prophase and before the anaphase. The chromosomes are joined together with the centromere.

This stage can easily be identified in the microscope. The chromosomes are aligned themselves at metaphasal plate in the center of the cell.

Thus, the answer is metaphase.

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.