Why do tertiary consumers, such as hawks or lions, often represent the least amount of biomass? (2pt)

Which of the following would likely have the greatest proportion of productivity going into its own respiration?

Nutrient Cycling  C. Resource pulses are occasional events of ephemeral resource superabundance that occur in many ecosystems. Herbivores, like the 17-year periodical cicadas, can have enormous impacts on the growth and reproduction in forest plants. In their immature forms they feed primarily on roots belowground biomass. Is this a top-down or bottom-up cascade? (2pts)  

Why do tertiary consumers, such as hawks or lions, often represent the least amount of biomass? (2pt)

A client diagnosed with somatic symptom disorder (SSD) is most likely to exhibit which personality disorder characteristics?

Which value can be measured the most easily?

What do the fungus that causes athlete’s foot, the tick that spreads Lyme disease, and body lice all have in common?

A biome extends across several continents. Parts of the biome on the different continents can be best identified by the

The competitive exclusion principle states that the _______ species prevents another species from using essential resources, causing the _______ species to become locally extinct.  

The total amount of photosynthesis is referred to as