A common cold is caused by a virus, not bacteria
Answer: It is when the population growth rates are regulated by density of a population. This is important in a multicellular organism for several reasons. It would affect the birth and death rates of the organism.
Explanation:
Biodiversity loss from species extinctions may rival pollution and climate change impacts. Species extinction and loss of biodiversity could be as devastating for the earth as climate change and air pollution. That's the finding of a new study by a group of scientists from nine countries.