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.
Many types of plankton are microscopic, but jellyfish that are meters long can be considered plankton because they always travel with the current. These organisms can be divided into two main categories: Phytoplankton and Zooplankton.Animal-like plankton are called zooplankton. These organisms need to consume other organisms, like phytoplankton, to survive. While phytoplankton are the base of the food web, zooplankton are the next level.These animals take energy from phytoplankton and then they themselves become food for larger marine life.he question is actually harder than students think, because plankton can be small, they can be big, they can be plants, and they can be animals. Plankton are not just one thing, they are a lifestyle, a way an organism lives in its environment. Plankton are drifters, meaning they cannot move against a current.