The difference between an R-selected species and a K-selected species is that the R-selected species live in variable, unstable habitats, while K-selected species reside in stable environments. R-selected species produce... More » Science Biology

Mollusks reside in many habitats around the world: most live in marine environments such as oceans and bays, while others reside in freshwater areas and even on land. Mollusks inhabit virtually every type of ecosystem on... More » Science Biology Zoology

A generalist species is one that can live in a wide variety of habitats and have a varied diet, while specialist species are adapted to a particular environment or a specific diet. Koalas and tiger salamanders are exampl... More » Science Biology
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Fungi can live in a variety of habitats that are classified as either marine or terrestrial: in the soil, in water, and on plants and animals. Evidence suggests that some fungi have evolved closely with their partnered p... More » Science Biology

Stabilizing selection is one form of natural selection, which states that individuals that are best able to adapt to their environments are more likely to live to reproduce. The beneficial adaptations are passed along to... More » Science Biology