Final answer:
The biological control organism that controls pests by laying eggs inside their bodies is the parasitic wasp. This method of using natural predators or parasites to manage pest populations is known as biological control, which is an environmentally friendly alternative to chemical pesticides.
Step-by-step explanation:
The biological control organism that controls pests by laying eggs inside the pest's bodies is parasitic wasp.
Parasitic wasps are an example of biological control agents that exploit host organisms (such as caterpillars) to complete their life cycle. When the female wasp lays her eggs inside the body of a pest, the hatching larvae feed on the host, effectively controlling the pest population. This method is a part of a broader strategy known as biological control (biocontrol), where natural predators or parasites are used to manage pest species.
Biocontrol strategies are increasingly used as an alternative to chemical pesticides to reduce negative impacts on the environment and non-target species, and to avoid the development of pesticide resistance. Other biocontrol agents include ladybugs to control aphids, fungi like Trichoderma for plant disease suppression, and entomopathogenic nematodes for insect pest control.