Oceanography, geology, meteorology, astronomy, and environmental science
The correct option is B. 80% of the radioactive phosphorus used in the experiment entered the cell showing that DNA was the hereditary material.
The earth's inner core is the innermost layer of the earth. Primarily, it is a solid ball composed of an iron-nickel allow and some other elements, which holds a radius of about 1,220 kilometers.
You should:
1. Keep a distance between you and the source.
2. Use shielding between you and the radiation source.
3. Reduce the time you are being exposed.
An advantage allowing the seed plant to greatly surpass the seedless vascular plants in colonizing the land was the evolution of air-dispersed sperm in pollen grains.<span>P</span>ollen is produced by the g<span>ymnosperms (and flowering plants as well) </span>as a package for the dispersal<span> of </span>sperm.
