Examlex
Match the description with the correct group of seedless vascular plants from the list that follows. They bear simple leaves arranged spirally on a stem and exhibit apical growth; the sporangia are contained within conelike structures called strobili.
Environmental Resistance
The combined physical, chemical, and biological limiting factors that restrict the growth, abundance, or distribution of an organism or a population within an environment.
Communities
Social groups of any size whose members reside in a specific locality, share government, and often have a common cultural and historical heritage.
Environmental Resistance
The sum of environmental factors (like predation, competition, and disease) that limit the population growth of an organism.
Limited Food Supply
A condition in which the availability of food is restricted or not adequate to meet the demand of a population.
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