Tundra ecosystem is cold and sunlight is short. Plants need sunglight and warmth in order to grow, thus plants in tundra are shorter and cloers to the ground since the ground is warmer than the air
Answer:
Viruses are composed of one or more cells.
Explanation:
The viruses are microorganisms composed of genetic material protected by a protein envelope, and that´s how they work and live. This protein membrane, (only present in some viruses), is carbon based.
By they way of fuction, they evolved along whit the cell in wich they are introduced, since they reproduce with it.
Conjugation and transformation are both kinds of horizontal gene transfer that allow a cell to receive and recombine external DNA. Conjugation involves physical contact between two bacteria using a pilus, through which a copy of plasmid DNA is transferred from the donor (F+) cell to the recipient (F-) cell. Transformation, on the other hand, is simple uptake of naked DNA into a recipient cell from the environment. The DNA usually comes from the leftovers of a dead cell.
