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Categories of species that feed on no other species in the food web are referred to as ____.
Categories of species that feed on no other species in the food web are referred to as ____.
top predator
Intermediate species
autotrophs
basal species
c & d
Ecologists usually consider a subset of species when they define and study communities. When both hummingbirds and bumble bees feed on nectar in flowers they can be grouped as a/an _______.
taxonomic group
guild
functional group
ecological group
geological group
Holoparasitic plants are nonphotosynthetic whereas hemiparsitic plants are photosynthesic.
True
False
In the Lotka-Volterra competition equations, a and ß refers to?
per capita growth rates
species density
carrying capacity
competitive coefficients
The Shannon index is the one most commonly used quantitative species diversity indices which considers both number of species and evenness.
True
False
