BIO 111 UNIT 4 EXAM 2026 LATEST UPDATE
QUESTIONS AND CORRECT VERIFIED
ANSWERS ALREADY GRADED A+
What is in situ bioremediation? - ANS-Treating contaminants directly at the site of pollution
without removing the polluted material.
What is ex situ bioremediation? - ANS-Removing contaminated materials (e.g., soil, water) to
treat them in a controlled environment.
What is microbial bioremediation? - ANS-Using bacteria, fungi, and other microorganisms to
degrade organic pollutants such as oil, pesticides, and heavy metals.
What is phytoremediation? - ANS-The use of plants to absorb, detoxify, or immobilize
pollutants (e.g., heavy metals, wastewater) in soil or water.
What is mycoremediation? - ANS-The use of fungi to break down organic pollutants and
recycle nutrients, often in contaminated soil or water.
What are some applications of bioremediation? - ANS-Cleaning up oil spills, heavy metal
contamination, pesticide residues, and industrial waste; restoring contaminated water
sources and agricultural soils.
What are the advantages of bioremediation? - ANS-Environmentally friendly, cost-effective,
and sustainable method of remediation; can treat large areas and reduce harmful waste
without causing further environmental damage.
, What are the limitations of bioremediation? - ANS-Effectiveness depends on the type of
pollutant, environmental conditions, and the time required for the bioremediation process.
What does population conservation focus on? - ANS-Population size, genetic diversity, and
habitat.
What is the extinction vortex? - ANS-A downward spiral in which small populations become
increasingly vulnerable to genetic, environmental, and demographic factors, leading to a
higher risk of extinction.
What is species richness? - ANS-The number of different species in a community.
What is relative abundance? - ANS-The proportion each species represents of all the individual
species.
What is the Shannon Diversity Index? - ANS-A measure of relative abundance; higher H value
indicates more diversity.
What is genetic diversity? - ANS-The variety of genetic material within a species or population,
contributing to adaptability.
What is species diversity? - ANS-The variety of species within a specific area or ecosystem,
measured by species richness and evenness.
What is ecosystem diversity? - ANS-The variety of different ecosystems or habitats within a
specific geographical area.
QUESTIONS AND CORRECT VERIFIED
ANSWERS ALREADY GRADED A+
What is in situ bioremediation? - ANS-Treating contaminants directly at the site of pollution
without removing the polluted material.
What is ex situ bioremediation? - ANS-Removing contaminated materials (e.g., soil, water) to
treat them in a controlled environment.
What is microbial bioremediation? - ANS-Using bacteria, fungi, and other microorganisms to
degrade organic pollutants such as oil, pesticides, and heavy metals.
What is phytoremediation? - ANS-The use of plants to absorb, detoxify, or immobilize
pollutants (e.g., heavy metals, wastewater) in soil or water.
What is mycoremediation? - ANS-The use of fungi to break down organic pollutants and
recycle nutrients, often in contaminated soil or water.
What are some applications of bioremediation? - ANS-Cleaning up oil spills, heavy metal
contamination, pesticide residues, and industrial waste; restoring contaminated water
sources and agricultural soils.
What are the advantages of bioremediation? - ANS-Environmentally friendly, cost-effective,
and sustainable method of remediation; can treat large areas and reduce harmful waste
without causing further environmental damage.
, What are the limitations of bioremediation? - ANS-Effectiveness depends on the type of
pollutant, environmental conditions, and the time required for the bioremediation process.
What does population conservation focus on? - ANS-Population size, genetic diversity, and
habitat.
What is the extinction vortex? - ANS-A downward spiral in which small populations become
increasingly vulnerable to genetic, environmental, and demographic factors, leading to a
higher risk of extinction.
What is species richness? - ANS-The number of different species in a community.
What is relative abundance? - ANS-The proportion each species represents of all the individual
species.
What is the Shannon Diversity Index? - ANS-A measure of relative abundance; higher H value
indicates more diversity.
What is genetic diversity? - ANS-The variety of genetic material within a species or population,
contributing to adaptability.
What is species diversity? - ANS-The variety of species within a specific area or ecosystem,
measured by species richness and evenness.
What is ecosystem diversity? - ANS-The variety of different ecosystems or habitats within a
specific geographical area.
