Trophic Stuctures

Question 1

Open Energy Systems

Answer 1

flows to AND from the earth

Question 2

Closed Energy System

Answer 2

Nutrients cycle within the earth

Question 3

Photosynthesis is an example of a ?

Answer 3

closed energy system

Question 4

First law of thermodynamics

Answer 4

Energy cannot be created or destroyed, only change form

Question 5

Trophic levels

Answer 5

level in a food chain

Question 6

Heterotroph

Answer 6

Consumer

Question 7

Autotroph

Answer 7

Producer

Question 8

Detritivores

Answer 8

feed on dead organic material, consume material to break it down

Question 9

Decomposer

Answer 9

decompose dead organic material, decompose nutrients on a molecular level

Question 10

what order do these go in

Answer 10

Tertiary, Primary, secondary, producer

Question 11

Productivity

Answer 11

rate at which energy is added to the bodies of a group of organisms as biomass- not effective

Question 12

Gross Primary Productivity

Answer 12

overall rate of energy captured by the producer, amount of energy that plants actually absorb from the sun

Question 13

Net Primary Productivity

Answer 13

gpp - rate of energy loss, always lower than gpp

Question 14

In a food web, an heribovre could be best described as

Answer 14

Primary Consumer

Question 15

An eagle classically represent

Answer 15

a tertiary consumer in a trophic pyramid

Question 16

Aprox. what percent of light energy is absorbed by primary producers

Answer 16

1 %

Question 17

Aprox. what % of energy is transfered from 1 trophic level to the next

Answer 17

10%

Question 18

why do aquatic ecosystems have an inverted biomass pyramid when compared to a terrestrial one

Answer 18

Primary producers have little biomass

Question 19

Silver springs energy pyramid the ecological efficency was. aprox

Answer 19

5-16%

Question 20

Energy flows and nutrients cycling are both closed systems

Answer 20

false

Question 21

NPP is always lower than GPP

Answer 21

true