These nematodes, sold under the names of Scanmask and Nemasys, are microscopic, wormlike creatures that will destroy the fungus gnats but are not harmful to people, pets, plants, or earthworms. These products can be used whenever the soil is not frozen and will keep working for many months.
Page 76 #1, 2, 5, 6, 7. Plants: Cells, Tissues, Organs and. Organ Systems. Before we get into plants....... ïThe cell membrane of a cell is a barrier through which everything must pass on. its way into or out of the cell. ïPassage across the cell membrane occurs through a process of Diffusion ï . the movement of molecules from areas of high concentration to areas of low.
Your skin is an organ-it's made of multiple layers of epithelial tissue. Your heart is an organ-made up of epithelial, muscle, nervous, and connective tissues. Organs working together to perform a function are called an organ system. There are 10 major organ systems in your body. One is the digestive system.rgans, and organs work together to. make organ systems, which work. together to keep your body. functioning. The digestive system helps the body get the nutrients it needs from food. First, chemicals break food down into nutrients. then, nutrients are moved into the blood.