Parasitoids are organisms that live in or on a host organism and eventually kill it. They are commonly found in the insect world, where they play a significant role in controlling insect populations.
Types of Parasitoids
There are two main types of parasitoids:
Ectoparasitoids: These parasitoids lay their eggs on the outside of the host organism. The larvae then feed on the host's body fluids and tissues.
Endoparasitoids: These parasitoids lay their eggs inside the host organism. The larvae develop inside the host, eventually killing it as they emerge.
Life Cycle
The life cycle of a parasitoid typically involves the following stages:
Host location: The parasitoid locates a suitable host organism to lay its eggs.
Egg laying: The female parasitoid lays its eggs either on or inside the host organism.
Larval development: The parasitoid larvae feed and develop inside or on the host organism, eventually causing its death.
Pupal stage: After consuming the host, the parasitoid larvae undergo metamorphosis into pupae.
Adult emergence: The adult parasitoids emerge from the pupae and seek out new hosts to continue the cycle.
When studying parasitoids, it's important to focus on understanding their life cycle, the differences between ectoparasitoids and endoparasitoids, and their role in controlling insect populations. Additionally, familiarize yourself with examples of parasitoids and their impact on ecosystems.
Energy - A. Energy is involved in all physical and chemical processes. It is conserved, and can be transformed from one form to another and into work. At the atomic and nuclear levels energy is not continuous but exists in discrete amounts. Energy and mass are related through Einstein's equation E=mc 2 . B. The properties of atomic nuclei are responsible for energy-related phenomena such as radioactivity, fission and fusion. C. Changes in entropy and energy that accompany chemical reactions influence reaction paths. Chemical reactions result in the release or absorption of energy. D. The theory of electromagnetism explains that electricity and magnetism are closely related. Electric charges are the source of electric fields. Moving charges generate magnetic fields. E. Waves are the propagation of a disturbance. They transport energy and momentum but do not transport matter.
Relate temperature to the average molecular kinetic energy.