Examlex
Which of the following could qualify as a top-down control on a grassland community?
Genitalia
The external and internal organs of the reproductive system in both males and females, responsible for sexual reproduction.
Sex Chromosomes
Chromosomes responsible for determining the biological sex of an organism, notably the X and Y chromosomes in mammals that govern male and female traits.
Population Percentage
A numerical representation that shows a part of the total population as a percentage of the whole.
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