HCCY: Year 11 Bio (7) - Effects of the environment on organisms

Use the following map to identify which ecosystem is predominantly distributed in Tasmania.

• Open woodland

• Sclerophyll forest

• Temperate rainforest

• Tropical rainforest

Abiotic characteristics are:

• the living components of the environment.

• the characteristics of weather in the environment.

• the non-living components of the environment.

• both the living and non-living components of the environment.

What do biotic and abiotic factors influence in an ecosystem?

• Species relationships

• Species diversity

• Changes in organisms

• Changes in water availability

What is main difference between deserts and shrubland ecosystems?

• Rainfall and sunlight

• Sunlight and tree canopy

• Rainfall and temperature

• Temperature and tree canopy

Which one of the following describes the correct conditions in a desert ecosystem?

• High rainfall; high temperature

• High rainfall; low temperature

• Low rainfall; high temperature

• Low rainfall; low temperature

What is an ecosystem?

• A community of organisms interacting with their environment

• A population of organisms interacting with each other

• A collection of individuals sharing abiotic features

• A group of organisms sharing abiotic and biotic features

7) Which of the following is the most correct regarding the distribution of a species in an ecosystem?

• It informs biologists about the number of organisms in a population.

• It is determined by the availability of biotic and abiotic factors.

• It describes the feeding relationships in an ecosystem.

• It remains unchanged over a period.

Which of the following is an abiotic selection pressure for Atriplex, a desert plant?

• Salt availability

• Availability of sunlight

• Water availability

• Availability of gases

A selection pressure is best described as:

• a change in the organism to suit its environment.

• a change in the environment.

• a feature that changes in the organism.

• a feature that changes over time.

What affects the abundance and distribution of organisms in Australia?

• Rainfall and temperature

• Temperature and vegetation

• Rainfall and vegetation

• Vegetation and landforms