germs - is a tiny organism that causes a disease., microscope - object with you can see the germs, types of germs - virus and bacterias, inmune system - Protect us from sickness, how germs spread - caughs, touching surface, body contact., Prevent the spread of germs - watch your hands, cover your nose and mouth, mocus - it traps germs, cells, tissues and organs - works together to protect the body, White blood cells - are the body's disease fighting cells , type of leukocytes - phagocytes and lymphocytes, phagocytes - eat microorganisms and foreign particles in your body , lymphocytes - remember the previous invaders and know if they show up again,

ciencia

由
打印
嵌入

排行榜

视觉风格

选项

切换模板

恢复自动保存：？