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Chapter 3: Problem 8

What two variables most strongly contribute to the type of biome that exists in a particular area? A. Precipitation levels and temperature B. Type of producers and density of herbivores C. Amount of sunlight and annual rainfall D. Soil type and amount of \(\mathrm{O}_{2}\) E. Distance from ocean and elevation

Short Answer

Expert verified
A. Precipitation levels and temperature

Step by step solution

01

Understand the Question

Identify the key factor the question is asking. It is asking for the two variables that most strongly contribute to the type of biome in an area.
02

Review Each Option

Examine each option given: A. Precipitation levels and temperature B. Type of producers and density of herbivores C. Amount of sunlight and annual rainfall D. Soil type and amount of \(\mathrm{O}_{2}\) E. Distance from ocean and elevation.
03

Analyze Each Variable

Consider how each variable impacts biomes: - Precipitation levels directly influence water availability. - Temperature affects climate and weather patterns. - Type of producers and density of herbivores affect local ecosystem dynamics but not necessarily biome type. - Sunlight and annual rainfall are both important but sunlight varies less broadly across areas compared to temperature. - Soil type and \(\mathrm{O}_{2}\) are important for plant growth but not as determinant for biome type. - Distance from the ocean and elevation can influence climate but not as universally as temperature and precipitation.
04

Identify the Best Option

From the analysis, precipitation levels and temperature (Option A) are the most fundamental variables in determining the type of biome because they directly affect the climate and the biological characteristics of an area.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

precipitation levels
Precipitation levels are a crucial determinant for biomes. This factor dictates the availability of water in a region. Ecosystems can only thrive if they meet their water requirements.
In regions with high precipitation, you'll often find lush biomes like rainforests because they can support a wide variety of flora and fauna.
On the other hand, areas with low precipitation levels are home to deserts and arid regions due to the scarcity of water.
  • High precipitation: rainforests, wetlands
  • Moderate precipitation: grasslands, deciduous forests
  • Low precipitation: deserts, tundra
Understanding precipitation's role helps explain why some biomes look wet and green while others are dry and sparse. It also affects soil moisture levels, impacting plant growth directly.
temperature
Temperature is another fundamental factor influencing biomes. It impacts climate, which in turn affects living conditions for plants and animals.
Different temperature ranges support different types of organisms. For instance, tropical zones with higher temperatures generally have more diverse ecosystems due to their ability to support year-round plant growth.
Cold regions like tundras, however, have limited biodiversity due to extreme conditions that only certain species can tolerate.
  • High temperatures: tropical rainforests, savannas
  • Moderate temperatures: temperate forests, grasslands
  • Low temperatures: tundras, taigas
Temperature also influences metabolic rates in animals and the rate of photosynthesis in plants, which are vital for survival and reproduction.
climate influence on biomes
Climate encompasses both temperature and precipitation, playing a pivotal role in shaping biomes.
Climate patterns determine the long-term weather conditions of a region, influencing which plants and animals can thrive there.
For instance, a region with regular rainfall and warm temperatures will likely support a tropical rainforest biome. Conversely, a cold area with minimal precipitation can support a tundra.
  • Tropical climates: hot and wet -> rainforests
  • Arid climates: hot and dry -> deserts
  • Polar climates: cold and dry -> tundras
Moreover, climate changes can lead to biome shifts. For example, increasing temperatures may turn some forested areas into grasslands. Understanding how climate impacts biomes is essential for predicting ecological changes and managing natural resources effectively.

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Most popular questions from this chapter

Use your knowledge of the relative energy content among trophic levels to answer the following question: A larger human population could be supported if all humans derived their food from which trophic level? A. Producers B. Primary consumers C. Secondary consumers D. Tertiary consumers E. Quaternary consumers

Which one of the following would most likely live within the benthic realm of the ocean? A. Squid B. Tuna C. Phytoplankton D. Marine worm E. Shark

Which one of the following would not increase the amount of water in the atmosphere? A. Evaporation B. Transpiration C. Sublimation D. Infiltration E. Evapotranspiration

Secondary consumers would eat which one following? A. Producers B. Plants C. Herbivores D. Carnivores E. Tertiary consumers

Which one of the following is not a biogeochemical cycle? A. Energy cycle B. Nitrogen cycle C. Carbon cycle D. Phosphorus cycle E. Water cycle
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