Essential oils are natural, chemical-free alternatives to store-bought bug sprays. Many essential oils are mosquito repellents. Lemongrass and Citronella are the most commonly used in natural bug sprays, but most lemon-scented essential oils are insecticides. Other good options include Eucalyptus and Lavender.
Plankton are also divided into 3 main types: 1  Phytoplankton (from Greek phyton or plant), algae that live near the water surface where there is sufficient light to support photosynthesis. 2  Zooplankton (from Greek zoon or animal), small protozoa, crustaceans, jellyfish and various other animals that feed on other plankton.n Plankton, Sea Life. plankton facts-facts about plankton-what is plankton-. Plankton is not the name of a plant or animal but more of a category for any drifting organism that inhabits the middle to upper levels of the ocean, namely the pelagic zone.
Plankton are very small organisms that live in the world's oceans. There are two main categories of plankton; phytoplankton and zooplankton. Phytoplankton are small plants tha â¦ t cause the color of the oceans in some places to be green. They also make up the largest single biomass in the world.hey inhabit the pelagic zone of oceans, seas, or any other bodies of fresh water. See related link below.. These are microscopic organisms, similar to phytoplankton, who consume other plankton and digest waste.