Why is the number of trophic levels in an ecosystem limited?

What are the two main abiotic factors that determine a biome?

What is the difference between a fundamental niche and a realized niche?

In a food web, two different species can directly affect each other’s abundance via _ competition or may in fact have their abundance indirectly regulated by a higher trophic level, a phenomenon called ____ competition. a) Intraspecific, apparent b) Interspecific, apparent c) Intraspecific, apparent d) Apparent, interspecific

Compare and contrast trophic levels, food chains, and food webs. How are these concepts related, and how do they differ?

Which of the following are important  biotic factors that can affect the structure and organization of an ecosystem?   A)temperature, water B)nutrient availability, soil pH C)predation, competition D)precipitation, wind E)light intensity, seasonality

Which of the following is not an abiotic factor in an ecosystem? A) Available light B) Temperature Water availability Number of organisms in a population

Are the impacts of the biotic and abiotic factors Short or long term or both?