In multicellular organisms, the shape of the cell helps determine its function. For example, red blood cells are donut-shaped to easily exchange oxygen and freely pass through narrow blood vessels while nerve cells are long so when connected to other nerve cells they can span long distances in the organism
Answer:
Due to lack of biological gent.
Explanation:
Introducing a new species to a new ecosystem often leads to a disaster because of the absence of bioagent for that species. Bioagent are those organisms which has the ability to control other organisms by feeding on them. A new species does not make problem in its old or original ecosystem due to the presence of controlling agents but in the new ecosystem there is no bioagent that can stop its growth so that's why sometimes the introduction of new species leads to a disaster.
Answer:
NUMEROUS DISEASES SPREAD
Explanation:
When Columbus stumbled upon the Americas, he and his crew were carrying numerous diseases, including smallpox, which killed 50% - 90% of the Native people's population.
Answer:
10W
Explanation:
Power is the "ability to make work over time", so to get the power, just divide work by time.
20J/2s = 10 J/s = 10W
