Health hazard. We have Ignaz Philipp Semmelweis to thank for modern standards of hygiene in our hospitals. He discovered that more women were dying in maternity wards manned by doctors than in those manned by midwives.
He realised the Questions: 10 Attempts: Last updated: May 10, Salmonella and listeria food poisoning. Cholera and typhoid. Whooping cough and sore throats. Scurvy and anaemia. The human body is well defended against infection. Sometimes pathogens like bacteria and viruses do get through, making you ill. There are physical barriers like your skin and the cilia tiny moving hairs and mucus that line The nervous system enables humans to react to their surroundings and coordinate their behaviour.
Receptors detect stimuli outside the body and relay messages to the central nervous system and brain for processing. Have you ever Tiny hairs on the skin can be raised and lowered by small muscles. What is the first step in the cell cycle? Mitosis or Meiosis. Cell Division. What is the last step in the cell cycle? What holds DNA?
Cell Wall. What is the Cytoplasm? DNA holder. Where does photosynthesis take place? Where does respiration take place? Call Wall. How many strands do DNA have? How many strands do RNA have?
What is an allele? Explore the science of fermentation and the vitamins and flavor it produces. The Molecular Art of Grilling — Visually experience what happens to meat as it is grilled. Select from beef, pork, or fish to learn what internal temperatures are reached when meat is grilled. Students will learn not only cooking, but also science and health involved in preparing food.
Virtual Frog Dissection — This is a full-color frog dissection for students to use in learning the organs and their location. Dissection is available in several languages. Biology Test - 18 questions to exam the basis of biology and get a school mark.
Food Chain Puzzle - Sort the food chain in correct order. Biology game to study the food chain diagram. Airborne Viruses - Sort the Airborne Viruses in their correct names. Arm Bones Puzzle - Find the correct bone name of the human arm. Homology Puzzle - Sort the limbs of the correct animal. Frog Anatomy - Sort the organs of the frog in correct places. Cat Breeds Puzzle - Sort the cat photos on the correct breed name. Zoology game. Muscle Types Puzzle - Sort the skeletal muscles on the correct location in the human body.
Chromosome Puzzle - Sort the parts of the chromosome structure. Catch the Snakes - Catch 18 types of snakes that inhabits the Eastern Eropean regions.
Tooth Structure Puzzle - Sort the parts of the tooth in their correct places. Teeth Types Puzzle - Label the 5 types of the human teeth correctly. Animals Lifespan Puzzle - Sort the animals in the appropriate position on the time line. Ocean Depths Puzzle - Sort the marine animals in the appropriate deep see zones. Mosquito Life Cycle Puzzle - Sort the stages of mosquito life cycle in correct order. Butterfly Life Cycle Puzzle - Sort the stages of butterfly life cycle in correct order. Frog Life Cycle Puzzle - Sort the stages of frog life cycle in correct order.
Chicken Life Cycle Puzzle - Arrange the stages of chicken life cycle in correct order. Cannabis Life Cycle Puzzle - Sort the stages of cannabis plant life cycle in correct order. Cerebral Lobes Puzzle - Sort the lobes of the cerebral brain in correct order. Chloroplast Puzzle - Study chloroplast structure organelle.
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