Interactions with ecosystems

Question 1

Producer (they convert _____ matter into _____ matter?)

Answer 1

An autotroph, capable of converting inorganic matter into organic matter with the assistance of light energy

Question 2

Chemosynthesizer (convert _____ matter into _____ matter)

Answer 2

A form of self feeder (convert inorganic matter into other forms of inorganic matter, extract energy from the chemical bonds) ex: nitrogen fixing bacteria

Question 3

Consumer

Answer 3

Heterotroph, consume autotrophs or heterotrophs for energy.

Question 4

Primary consumers

Answer 4

“herbivores” consume plants

Question 5

secondary, tertiary and quaternary consumers

Answer 5

classified as carnivores as they are consuming meat

Question 6

Apex predator

Answer 6

the final consumer in a chain

Question 7

Detritivores

Answer 7

actually eat up the material

Question 8

Decomposers

Answer 8

more general, breaks down dead material or waste

Question 9

Trophic level

Answer 9

the feeding level where energy and matter is transferred

Question 10

How is a trophic level identified?

Answer 10

by the number of energy transfers that have taken place from the original solar energy entering a system.

Question 11

Efficiency of energy between trophic levels

Answer 11

Only 10% of the energy from the previous trophic level is transferred, which leaves 90% of the energy as waste.

Question 12

First law of thermodynamics

Answer 12

energy cannot be created or destroyed but it can be converted from one form to another

Question 13

Second law of thermodynamics

Answer 13

During an energy conversion, some useful energy is lost as heat (no system is 100% efficient)

Question 14

Food chains

Answer 14

A linear depiction of energy transfer in an ecosystem

Question 15

Food webs

Answer 15

Interactions of several food chains. Shows the diversity of food sources that members of a community may rely on

Question 16

Potential causes of energy loss

Answer 16

organism dies without being eaten, parts of organism are not eaten, parts are not digested, energy is lost as heat through cellular respiration

Question 17

A pyramid of numbers

Answer 17

Depicts the number of organisms at one trophic level needed to support the organisms at the next trophic level.

Question 18

A pyramid of biomass

Answer 18

Depicts the mass of the organisms at each trophic
level.

Question 19

What is biomass?

Answer 19

The dehydrated organic tissue of the organisms at a level

Question 20

A pyramid of energy

Answer 20

Depicts the energy of the biomass at each trophic level, calculated with a calorimeter. out of the pyramids, MOST ACCURATELY DEPICTS ENERGY LOSS