Ch. 5 Key Terms

Question 1

photosynthesis

Answer 1

the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water

Question 2

producer

Answer 2

Producers are organisms capable of creating simple carbohydrates such as glucose, from gaseous carbon dioxide

Question 3

consumer

Answer 3

Consumers are organisms that need to eat

Question 4

decomposer

Answer 4

an organism, especially a soil bacterium, fungus, or invertebrate, that decomposes organic material

Question 5

cellar respiration

Answer 5

s a set of metabolic reactions and processes that take place in the cells of organisms to convert chemical energy from oxygen molecules or nutrients into adenosine triphosphate (ATP), and then release waste products.

Question 6

food chain

Answer 6

a hierarchical series of organisms each dependent on the next as a source of food.

Question 7

food web

Answer 7

a system of interlocking and interdependent food chains

Question 8

tropic levels

Answer 8

The trophic level of an organism is the position it occupies in a food web

Question 9

ecological succession

Answer 9

is the process of change in the species structure of an ecological community over time

Question 10

primary source

Answer 10

In the study of history as an academic discipline, a primary source is an artifact, document, diary,

Question 11

secondary source

Answer 11

In scholarship, a secondary source is a document or recording that relates or discusses information originally presented elsewhere

Question 12

pioneer species

Answer 12

The pioneer species are hardy species which are the first to colonize barren environments or previously biodiverse steady-state ecosystems that have been disrupted, such as by fire

Question 13

climax community

Answer 13

in which populations of plants or animals remain stable and exist in balance with each other and their environment