Researchers studying guppies in Trinidad found that guppies in streams with high predation reproduced earlier and more frequently.How would the scientists describe the selective force acting on the guppy population?

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The selective force acting on the guppy population is r-selection, which favors individuals that reproduce quickly and have many offspring without much investment in each individual offspring. The high predation in the streams with guppies forces them to reproduce early and often in order to have a higher chance of passing on their genes before being eaten. This is a classic example of r-selection, which is characterized by high fecundity, short generation times, and low parental investment in each offspring.

Researchers Studying Guppies in Trinidad Found That Guppies in Streams