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Env Ch 8
Study Guide for Env Ch 8
Question | Answer |
---|---|
an example of a population is? | chs |
the density of a population is? | how many people are in a population |
which relationship is neither species harmed | commensalism |
which would most likely cause a large number of density independent deaths in a population? | disease |
which organisms have the highest reproductive potential? | bacteria and insects |
the relationship between acacia trees and the ants that live in them is? | mutualism |
the number of wild horses per square km in a prairie is the populations? | density |
a female dogs niche would include what? | fleas, puppies, home, necessary needs |
what has greatest effect on reproductive potential? | reproducing earlier in life |
the difference between predator and a parasite is? | predator kills its prey |
professionals who make predictions about human population are called? | demographers |
which factor contributed most to the growth of human population? | hygiene improvement |
the 1991 cholera outbreak in Lima, Peru was caused by? | water |
waterborne illnesses could be ruduced by? | water treatment |
the last two decades human population doubled due to? | industrian and scientific revolution |
which diseases are caused from unsafe water? | dysentery, typhoid, cholera |
how can countries be labeled? | more developed or less developed |
How to countries attempt to reduce birthrates? | public advertising an education |
life expectancy is affected by? | infant mortality |
what is migration? | movement of individuals between areas |
Professionals who study and make predictions about human populations are called? | demographers |
which factor contributed most to the exponential growth of the human population? | better hygiene |
The 1991 cholera outbreak in Peru was caused by? | lack of clean water |
Human population growth was most rapid during which period of human history? | Modern Age |
In which of the following relationships is neither species harmed? | commensalism |
The difference between a predator and a parasite is that a predator? | kills its prey |
What would cause a large number of density independent deaths in a population? | winter storms |
Educating women worldwide has lowered birthrates because? | family planning techniques |
Which disease is often spread through unsafe public water sources? | dysentery |
Less developed countries suffer rapid population growth because of? | infrastructur |