1. Match the following
terms with their correct definition found below.
A. Free-floating algae;
ocean food chain producers
B. A bay ecosystem where
fresh and salt water mix
C. Free-floating animals;
first order consumers in ocean food chain
D. A successional stage
E. The first stage in succession
2. The branch of science
that deals with the ways that organisms and their surroundings interact is
3. An organismâ€™s
___________ is basically its â€œaddressâ€ while its ___________ is its
â€œoccupationâ€ or functional role within its environment.
4. Each step in the flow
of energy through an ecosystem is a ___________, or feeding, level.
organisms, usually green plants, are able to make new, complex organic
materials by themselves via photosynthesis; _____________ organisms, usually
animals, can only utilize organic materials as food which provide their energy.
6. regular predictable
changes in the structure of a community over time is called _____succession___________.
7. Two types of succession
include ___primary ________ succession which begins on bare rock and _____secondary________
succession which begins on substrate that remains after the destruction and/or
disturbance of an existing ecosystem.
8. The _______ community
is the group of plants and animals that becomes relatively stable, long
lasting, or otherwise self-perpetuating at the end of a long period of
succession; such major types of communities are also known as ________ or major
life zones such as deserts, oceans, deciduous forests, etc.
9. Receiving 200 cm. or
more of precipitation per year, the ________ _____ _______ is considered to be
the most prolific biome in terms of variety and number of species of both
animals and plants present.
10. Aquatic ecosystems are
divided into two types, ___marine ecosystem________ having a large
concentration of salt and other dissolved materials, and ___freshwater
ecosystem_________, those lacking the salt.
11. Exhibiting short
growing seasons, small, low-lying plants and cold-adapted animals are three
characteristics of the __________ biome.
12. In Canada, parts of
Europe, and much of the former USSR, the coniferous forest is better known as
the ___Taiga________ or boreal forest.
13. List the four
biogeochemical cycles which provide the recycling of organic and inorganic
substances throughout the Earthâ€™s environments.