Ecological Tolerance and Survival Strategies in Organisms

The video tutorial covers the concept of ecological tolerance, explaining how organisms have a range of abiotic factors they can tolerate before facing injury or death. It discusses the law of tolerance, optimum and tolerance ranges, and the impact of abiotic factors like temperature, sunlight, salinity, pH, and flow rate. The video also differentiates between generalist and specialist species, highlighting their varying tolerance ranges and how habitat loss affects biodiversity, leading to the decline of specialist species first.

What does the law of tolerance state about organisms and abiotic factors?

• Organisms can survive in any condition.

• Organisms have a range of tolerances for each abiotic factor.

• Organisms are unaffected by abiotic factors.

• Organisms can only survive in their ideal conditions.

Which of the following is NOT considered an abiotic factor?

• Sunlight

• Predation

• Temperature

• Salinity

What is the term for the range outside an organism's optimum range where it can still survive?

• Survival zone

• Ideal range

• Tolerance range

• Zone of death

What happens to organisms outside their tolerance range?

• They become more adaptable.

• They experience physiological stress.

• They thrive and reproduce.

• They find new habitats easily.

How do generalist species differ from specialist species in terms of resource use?

• Generalists use a narrow range of resources.

• Specialists can survive in any condition.

• Specialists can use a wide variety of resources.

• Generalists can use a wide variety of resources.

What is a likely consequence of habitat loss on specialist species?

• They increase in number due to less competition.

• They adapt quickly to new environments.

• They thrive in the absence of competition.

• They are the first to decline as resources become unavailable.

Which species is more likely to survive in a changing environment?

• Specialist species

• Generalist species

• Neither, both are equally likely

• Species with no specific diet

What is the relationship between biodiversity and habitat loss?

• Generalist species are unaffected by habitat loss.

• Biodiversity decreases as habitat loss occurs.

• Specialist species increase with habitat loss.

• Biodiversity increases with habitat loss.