Question

1. panthers with teeth that are too short have difficulty capturing prey, while panthers with teeth that are too long have difficulty chewing their food.
2. in a lake in south africa, guppies are eaten by the pike fish, and the larger the guppy, the more difficulty it has escaping its pike fish predator.

Explanation:

Question 18

This scenario describes how extreme tooth lengths (too short or too long) negatively impact a panther's survival (capturing prey or chewing food). This relates to the concept of stabilizing selection in Biology, where intermediate traits are favored as extreme traits are disadvantageous.

The situation involves guppies and their predator (pike fish), where larger guppies have more difficulty escaping. This can relate to natural selection (specifically directional or disruptive? Wait, no—if larger guppies are more likely to be eaten, then smaller guppies would be favored, which could be directional selection, or also relate to predator - prey dynamics in Ecology (a subfield of Biology). The key is the relationship between guppy size and predation, which is a biological (ecological) interaction.

Answer:

The evolutionary concept here is Stabilizing Selection (related to Biology subfield of Natural Science).

Question 19