res shown are for the fourth question).
1. What is common between the environmental changes of ice ages and global warming?
They influence global temperatures in the same way.
They have the same causes.
They can lead to extinction.
They disrupt the same species in the same ways.
2. Which is an effect of short-term environmental changes?
adaptation
speciation
extinction
death
3. Which is an example of biodiversity contributing to the sustainability of an ecosystem?
A meadow covers a large area of land, providing shelter to many organisms.
The ocean can only support organisms that can survive salty conditions.
One species of plant has been growing in a field for several years.
Many kinds of fruit trees support a variety of birds and other animals in a forest.
4. Which graph best represents the relationship between niche diversity and biodiversity?
5. Which best defines a pioneer species?
a species that enters an area and makes its own food
a species that enters a community that is stable and balanced
the first species to populate an uninhabited area
the first species that eats other organisms in an area
6. A change occurs in an environment that lasts for three days and causes an immediate, dramatic impact. What can be known about this change?
It is a short-term change.
It is a long-term change.
It is a flood.
It is an ice age.
7. Which human activity will most likely contribute to ozone layer destruction?
cutting down trees to build a library
using fertilizer to grow bean crops
planting flowers that come from another area
frequently using an air conditioner in the home
8. The Chesapeake Bay is an important natural resource. Over the years, the number of oysters in the bay has declined dramatically, largely because of fishers who catch them and sell them as food. This has affected many other organisms that depend on oysters.
This is an example of which type of short-term human-induced environmental change?
eutrophication
non-sustainable harvesting
nonnative species introduction
pollution