Energy & Ecosystems & Nutrient Cycles

Question 1

What are ABIOTIC FACTORS?
Give 3 EXAMPLES

Answer 1

-FACTORS on an ENVIRONMENT
-That are NON-LIVING
–E.G– Light, Temp, Moisture levels

Question 2

What are BIOTIC FACTORS?

Answer 2

-FACTORS of an ENVIRONMENT
-That are LIVING

Question 3

What is an ECOSYTEM?

Answer 3

-ALL LIVING and NON-LIVING factors
-In an area that INTERACTS with one another

Question 4

What is Biomass?

Answer 4

Mass of ORGANIC MATTER in an ORGANISM

Question 5

Define POPULATION

Answer 5

-ALL ORGANISMS of a SPECIES
-That live in the SAME place at the SAME TIME, & can BREED with one another

Question 6

What can VARY the SIZE of a POPULATION?

Answer 6

-Effects of ABIOTIC FACTORS
-Interaction between ORGANISMS
–EG– Intraspecific & Interspecific Comp & Predatation

Question 7

What is the MAIN source of ENERGY for all LIVING THINGS?

Answer 7

The SUNS’ RADITATION

Question 8

What CAPTURES the SUNS LIGHT ENERGY?
How does it use the energy?

Answer 8

-PLANTS for PHOTOSYNTHESIS to SYNTHESISE SUGARS
-Used for RESPIRATION to release energy
–Rest for making other BIOLOGICAL MOLECULES
—Increasing the BIOMASS as well as CHEMICAL ENERGY STORE

Question 9

What happens to the BIOMASS of plants in terms of the NEXT TROPHIC LEVEL?

Answer 9

-PRIMARY CONSUMERS consume & break down BIOLOGICAL MOLECULES during RESPIRATION
-Used to RELEASE CHEMICAL ENERGY
–MOVEMENT, Maintaining BODY TEMP, GROWTH & REPROD