Answer:
The chromosomes become visible under a light microscope during prophase stage of mitosis
Explanation:
Propohase -
The first phase of mitosis , in which the chromosomes becomes visible , as a distinct structure , the nuclear envelope breaks down and the spindle formation takes place .
Hence , this stage is visible under the light microscope.
The next phase is the metaphase , in which the chromosomes line up in middle of cell .
In the third phase , i.e. , the anaphase , the chromosomes moves towards the opposite sides of the vcell .
In the fourth phase , i.e. , the telophase , the two nuclei are formed .
In the last stage , i.e. , cytokinesis , the cell finally divides into two daughter cells .
Yes lunar phases can and do follow a pattern and they can be predicated
Answer:
1. When the beginning of Earth occurred, there was little to no oxygen. So, some cells had to adapt to this and the process of anaerobic respiration allowed them to do so. In the grand scheme of things, there must have been a great number of anaerobic respiration occurring given the clement.
2. That probably would have caused the
atmosphere to cool down dramatically. The
cyanbacteria could have assisted, because it puts
oxygen into the atmosphere. The other autotrophs
would be affected, because if the temperature
dropped, the air would have cooled down.
Then, the autotrophs would not have
food from the carbon dioxide, or
other inorganic materials.
Explanation:
