Populations

_{When a population grows past the ecosystem's carrying capacity, what happens to the population?}

• Continues to grow
• The population starts to die off to return to carrying capcity
• The population will go extinct due to lack of resources
• The population grows then finds a new carrying capacity

If a country has a death rate of 30 and a birth rate of 45 the natural rate of increase would show the population is ______.

• Increasing
• Decreasing
• Staying the same
• Fluctuating too much

A population is...

• A group of one species in one area
• Multiple species that live in one area
• All of the living and nonliving things in an area
• None of these

Which survivorship curve represents a species where most of the individuals live through their lives and die of old age?

• Type 1
• Type 2
• Type 3

What is the current population of Earth?

• 3.3 million
• 6.5 billion
• 10 billion
• 7.4 billion

The largest number of individuals in a species that an environment can support long term

• carrying capacity
• emigration
• immigration
• population density

Why has the human population been able to grow so quickly in such a short period of time?

• Doctors have developed easier and safer ways to have babies
• People needed more help to work their farms so they had more children
• Because people stayed in one place and only moved when crowded out
• Because of medical care, clean water and better access to nutritious food

Food, water, sunlight, shelter, and space are resources that are often __________.

• limiting resources
• wet
• messy
• found in rocks

Study of characteristics of human populations 

• Geography
• Cartography
• Demography
• History

Which of the following is likely to be affected by a growing human population?

• amount of land for agriculture
• amount of clean water
• amount of air pollution
• all of the above