Under high-power lens, onion root tip appear as large, rectangular interlocking cells. It is clearly visible that cells are surrounded by distinct cell walls. Each cell has a dark stained nucleus. Large vacuoles are also observed in the cells. Small starch granules are also present inside the cells within the cytoplasm. Since root cells do not take part in photosynthesis, no chloroplasts are observed.
<span>C. Magma is injected into surrounding rock forming an igneous intrusion.</span>
The wild mustard has experienced microevolution via artificial selection processes by breeders
No need for evacuation but continue groundwater monitoring due to lower dose of toxic substance.
No need for evacuation, continue groundwater monitoring because the dose of toxic substance in a normal or safe range. In this range the toxic substance can't affect the health of people who drink that water.
If the dose of toxic substance increases more than 10 mg/ kg then the toxic substance killed people who drink that water. According to the graph, we can see that the dose is in a normal range so we can conclude that no need of evacuation for the people.
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