Answer:
The nucleus contains a cell's DNA.
The best option is D. Based on scientific evidence about algal bloom, it would be best to evacuate all humans from the area around the lake. Algal bloom is caused by excess nutrients in the lake. This occurrence is linked to the death of fishes, plants, mammals and birds. Also. it has been said to cause human illnesses. Thus, to avoid this, it would be best to stay away from the lake with algal bloom.
The answer your looking for should be flowering plants
B. vertebrates and invertebrates.
A nucleotide or a nucleic acid either one :)
