Final answer:
Catching lizards and tarantulas in the wild for the pet trade can lead to population decreases and increased predator competition.
Step-by-step explanation:
Two possible effects of catching lizards and tarantulas in the wild and selling them as pets are:
- Populations of these animals could decrease in the wild, as their numbers are reduced by the pet trade.
- This action could increase competition among predators of these organisms, as the removal of these animals from their native habitats affects predator-prey relationships.
Learn more about Effects of catching wild animals for the pet trade