Ecology and Biomes Concepts

The video introduces Chapter 52 of the ecology unit, focusing on the study of interactions among organisms and their environment. It distinguishes between climate and weather, emphasizing the long-term nature of climate and its impact on ecosystems. The video discusses the effects of climate change, particularly on aspen trees, and explains the concept of biomes, highlighting the importance of temperature and precipitation in determining biodiversity. It concludes with an exploration of biotic and abiotic factors that influence ecosystems.

What is the primary focus of ecology?

• The study of human impact on nature

• The study of non-living components

• The study of interactions among organisms and their environment

• The study of individual organisms

How is climate different from weather?

• Climate is the average of weather over time, weather is the day-to-day conditions

• Climate is only about temperature, weather includes all atmospheric conditions

• Climate is unpredictable, weather is predictable

• Climate is short-term, weather is long-term

Which of the following is a component of climate?

• Humidity

• Precipitation

• Cloud cover

• Air pressure

What is an example of a macroclimate factor?

• A local rainstorm

• The angle of the Sun

• A small pond

• A city park

What is the main cause of sudden aspen decline?

• Higher average temperatures

• Increased rainfall

• Increased soil salinity

• Decreased sunlight

How do beetles contribute to the decline of aspen trees?

• By increasing soil acidity

• By blocking sunlight

• By laying larvae inside the trees

• By eating the leaves

What defines a biome?

• The altitude of the region

• The number of species present

• The average temperature and precipitation

• The type of soil present

Which of the following is a biotic factor?

• Sunlight

• Soil composition

• Temperature

• Predator-prey relationships

What is an example of an abiotic factor?

• Plant competition

• Animal migration

• Carbon dioxide levels

• Symbiotic relationships

Which biome is characterized by high biodiversity and high precipitation?

• Tropical rainforest

• Desert

• Tundra

• Savanna