7. detritivore - Detritimores are organisms that obtain nutrients by consuming decomposing plant/animal parts; fungi such as these mature Agaricus bisporus (Portobello mushrooms) are the primary decomposers in most environments.
8. endosperm - Endosperm is the name given to the tissue produced inside the seeds of most flowering plants; rice, when harvested, still contains the endosperm while the embryo and seed coat are removed from the seed.
9. introduced species - An introduced species is a species that is living outside of its native habitat as a result of human activity. Goats are an agricultural species that have been introduced very widely.
11. K-strategist - A K-strategist is an animal that produces few offspring that require parental care until they mature; some of the characteristics of K-strategists are large body size, a longer life expectancy, and the production of fewer offspring. Many mammals are considered to be K-strategists, such as these horses.
20. r-strategist - R-strategists are species that usually create an abundance of offspring, have a short maturation time and lifespan, and invent little in parental care. Weeds are an example of R-strategists because of their relatively short lifespan and high rate of producing offspring.
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