Unit 6 & 7 Review

What are some factors that may affect the population of producer development in different biomes such as the tundra & temperate deciduous forest or the desert & grassland?

• Climate and how much sunlight received based on lines of longitude affects how well plants grow in different biomes

• Precipitation and how much sunlight received based on lines of latitude affects how well plants grow in different biomes

How do lines of latitude affect the development of a biome in different parts of the world? Does altitude have any impact?

• The closer to the poles (60 degrees N/S) the colder it will be because less sunlight reaches those regions. Altitude makes areas outside of these boundaries colder as well.

• The closer to the equator (60 degrees N/S) the warmer it will be because more sunlight reaches those regions. Altitude makes areas outside of these boundaries colder as well.

Why do different types of grasslands exist?

• Precipitation and climate can affect if a grassland will have more or less biomass & biodiversity.

• All grasslands are the same, they have no differences in biomass or biodiversity

How do lines of latitude have an impact on evaporation rates for different biomes?

• Evaporation occurs when liquid water is transformed into a gas (vapor) due to heat. It is hotter closer to the equator because it has more sunlight than the poles. Therefore, more evaporation occurs closer to the equator.

• Evaporation occurs when liquid water is transformed into a gas (vapor) due to heat. It is hotter closer to the poles because it has more sunlight than the equator. Therefore, more evaporation occurs closer to the poles.

How does the tundra’s soil has an effect on the absorption of water after precipitation in comparison to the desert?

• The tundra's soil is very sandy and water absorbs into very quickly.

• The tundra's soil is frozen, known as permafrost, and cannot absorb water and so it creates seasonal ponds of water instead.

Considering aquatic biomes, where might you find potable (drinkable) water?

• Potable water is found further away from saltwater, such as the ocean.

• Potable water is found closer to saltwater, such as the ocean.

How are decomposers important for ecosystems?

• Decomposers provide energy for consumers to use.

• Decomposers break down matter for producers to use.

What are some abiotic factors in an ecosystem and what is their influence?

• Sun provides energy, Soil provides nutrients, Water transports materials into/out of organisms.

• Cells provide structure for life to grow in, Tissues provide structure to develop organs, organs perform tasks for the body.

What impact do invasive species have on ecosystems they are introduced to?

• Invasive species change the balance of an ecosystem, reducing available resources for native organisms.

• Invasive species work together with native organisms to develop better flow of energy through the ecosystem.

A population of organisms is suffering from a disease. How would their population decline affect other organisms in the food web?

• Food resources would be reduced and there would be increased competition and a decline in population of other prey.

• The diseased organisms will always be vaccinated by humans and therefore will not have an impact on other populations.