1. Genetic engineering (bioengineering)
2. Cloning
3. Stem Cell research
4. GMO production
To name a few
Answer:
only helium makes balloons go up so the answer is helium
Explanation:
The borders (coastlines) of the continents underwent a number of changes
since the split. Often, chunks of land were washed away with water,
slowly or in bigger portions. The coast was generally "smoothed" by the
ocean currents too, and in some places more land was added with the
material that the ocean currents brought.
Then, the tectonic plates continue to move, so this adds to the changes of the shape of the continents.
Answer: A- cell wall
A new cell wall forms between the two membranes of the cell plate.
