Text Chapters 15 & 16: Ecology- Ecosystems Flashcards Preview

Biology 3 > Text Chapters 15 & 16: Ecology- Ecosystems > Flashcards

Flashcards in Text Chapters 15 & 16: Ecology- Ecosystems Deck (22):
1

Producers

plants convert light energy from the sun into food through photosynthesis

2

Primary Consumers

herbivores

3

Secondary Consumers

carnivores -animals that eat herbivores

4

Tertiary Consumers

top carnivores- animals that eat other carnivores

5

Detritus Feeders and Decomposers

release nutrients for reuse

6

Efficiency of Energy Transfer

10% of calories to next trophic level

7

Effects of Concentrating Elements of Contaminants in Animal Tissue

higher concentration of contaminants at higher levels of the food chain

8

Carbon Cycle

CO2-> sugars (Carbon Fixation, Photosynthesis), carbon moves through food chain, CO2 released through respiration, carbon from dead organisms can become coal, oil, natural gas, burning fossil fuels releases CO2

9

How the Carbon Cycle is Related to Global Warming

for terrestrial organisms, the most important carbon reservoir is the atmosphere

10

Nitrogen Fixation

N2 gas become ammonia or ammonium

11

Nitrification

ammonia is converted to nitrites or nitrates

12

Assimilation

nitrate is taken up by plants and converted to ammonium

13

Ammonification

soil bacteria release nitrogen from decaying matter

14

Dentrification

nitrate is broken down to produce N2 gas

15

Water Cycle

alternates between evaporation and precipitation

16

Pollution from the Water Cycle in the form of Acid Rain

burning fossil fuels releases the gases sulfur dioxide and nitrogen dioxide, when combined with water vapor in the atmosphere, the compounds form sulfuric acid and nitric acid, the acids fall to earth as acid precipitation

17

Herbivores

animals that eat plants

18

Carnivores

animals that herbivores

19

Carbon Fixation

the conversion process of inorganic carbon (carbon dioxide) to organic compounds by living organisms- photosynthesis

20

Respiration

the sum of all respiration occurring by the living organisms in a specific ecosystem

21

Evaporation

a change in phase in the atmosphere occurs when substances change from a liquid to a gaseous or vapor form

22

Precipitation

-water released from clouds in the form of rain, freezing rain, sleet, snow, or hail
-the primary connection in the water cycle that provides for the delivery of atmospheric water to the Earth