ECOL111 EXAM 2025 QUESTIONS| WITH
ALREADY SOLVED CORRECTLY
ANSWERS!! | ASSURED SUCCESS
Evapotranspiration - 🧠 ANSWER ✔✔The process by which water moves
from the earth to the atmosphere by evaporation and transpiration from
plants.
Aridity Index (AI) - 🧠 ANSWER ✔✔The ratio of precipitation and potential
evapotranspiration (AI = precipitation/potential evapotranspiration). The
smaller the number, the greater the aridity.
Why are drylands important for carbon storage? - 🧠 ANSWER ✔✔They are
extensive, stable, and able to sequester large amounts of carbon for a long
time.
What are the four major constituents of water potential? - 🧠 ANSWER
✔✔Osmotic potential, turgor potential, gravitational potential, metric
potential.
1
COPYRIGHT@SARAHROSAPERAL 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
, Osmotic Potential - 🧠 ANSWER ✔✔Energy associated with dissolved
solutes - salt water has a lower potential than fresh water.
Turgor Potential - 🧠 ANSWER ✔✔Energy associated with the exertion of
pressure - water moves from high pressure to low pressure.
Gravitational Potential - 🧠 ANSWER ✔✔Energy associated with gravity -
water flows downslope.
Matric Potential - 🧠 ANSWER ✔✔Energy associated with attractive forces
between molecules - e.g surface tension, capillary action, soil-bound water.
Niche differentiation - 🧠 ANSWER ✔✔Differentiation in multiple niche
dimensions is what allows species to coexist given competitive exclusion.
Competitive exclusion - 🧠 ANSWER ✔✔If two species occupy the same
niche, one will be better at exploiting the most limiting resource and
eventually exclude the other.
Water potential - 🧠 ANSWER ✔✔the potential energy of water per unit
volume relative to pure water.
Hydrological niche example - 🧠 ANSWER ✔✔Cape Flora, SA. Water
availability for plants is linked to soil drainage as well as bioclimatic factors.
2
COPYRIGHT@SARAHROSAPERAL 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
ALREADY SOLVED CORRECTLY
ANSWERS!! | ASSURED SUCCESS
Evapotranspiration - 🧠 ANSWER ✔✔The process by which water moves
from the earth to the atmosphere by evaporation and transpiration from
plants.
Aridity Index (AI) - 🧠 ANSWER ✔✔The ratio of precipitation and potential
evapotranspiration (AI = precipitation/potential evapotranspiration). The
smaller the number, the greater the aridity.
Why are drylands important for carbon storage? - 🧠 ANSWER ✔✔They are
extensive, stable, and able to sequester large amounts of carbon for a long
time.
What are the four major constituents of water potential? - 🧠 ANSWER
✔✔Osmotic potential, turgor potential, gravitational potential, metric
potential.
1
COPYRIGHT@SARAHROSAPERAL 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
, Osmotic Potential - 🧠 ANSWER ✔✔Energy associated with dissolved
solutes - salt water has a lower potential than fresh water.
Turgor Potential - 🧠 ANSWER ✔✔Energy associated with the exertion of
pressure - water moves from high pressure to low pressure.
Gravitational Potential - 🧠 ANSWER ✔✔Energy associated with gravity -
water flows downslope.
Matric Potential - 🧠 ANSWER ✔✔Energy associated with attractive forces
between molecules - e.g surface tension, capillary action, soil-bound water.
Niche differentiation - 🧠 ANSWER ✔✔Differentiation in multiple niche
dimensions is what allows species to coexist given competitive exclusion.
Competitive exclusion - 🧠 ANSWER ✔✔If two species occupy the same
niche, one will be better at exploiting the most limiting resource and
eventually exclude the other.
Water potential - 🧠 ANSWER ✔✔the potential energy of water per unit
volume relative to pure water.
Hydrological niche example - 🧠 ANSWER ✔✔Cape Flora, SA. Water
availability for plants is linked to soil drainage as well as bioclimatic factors.
2
COPYRIGHT@SARAHROSAPERAL 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
