Answer:
Dissaster like meteorite impacted all type of living forms, however, animals are impacted the most and plants are impacted least. It is possible due to ability of plants to prepare their food on their own as they are autotrophic and use photosynthesis. The raw material for preparing these are easily available that are sunlight, CO2 and water.
They are not depende on other for their cellular respiration. The other major reason is that the Plant seeds can remain dormant in unfavorable conditions for many years in the soil. The roots always provide nutrition even the stems get effected.
Scientists often use models because the real thing many be to dangerous or impossible to work with. The most important that model helps better then visualization and you can see it right in front of your eyes.
In the nucleus of the cell, there are chromosomes that contain genetic material
do you have a graph or an image you can attach
