Because it was not tested multiple times by other scientists
The little dots collected from under the fern leaves are spores, not seeds. Ferns are different from seed-bearing plants in that ferns in a sexless way through sporophyte generation. Spores dropped from or taken from grown fern leaves have developed prothallium. Each prothallium generates male and female organs in what is called the gametophyte stage. When fertilization of the female gametophyte happens, small fern plants or leaflets start to grow.
1.) A nucleotide of DNA consists of a sugar, a phosphate, and a nitrogen containing base.
2.) A mutation is a change in the base sequence of a DNA molecule
Hope this helps!
The relationship between you and your group mates will improve
Increase.
Unless there is more information missing from this passage; the quality of soil will increase as sustainability increases. With a lack of additions from foreign substances, the earth shall regain its initial strength to grow whatever crop.
