In areas where sanitation is poor, parasites that are spread by ingestion of fecal-contaminated food and water are common. The plants of this group are adapted to live partly in water and partly above substratum and free from water (a) Xerophytes (b) Thallophytes (c) Hydrophytes (d) Helophytes (d) Helophytes. When the eggs hatch, the young one eats the larva and derives nutrition from it. Class 12th Biology 2012 Set1 Outside Delhi Board Paper Solution Parasitism. The parasites reproduce asexually in the RBCs, bursting the cells and releasing more parasites to infect more cells. To know more about what is parasitism, its definition, types and parasitism examples, keep visiting  BYJU’S Biology website or download BYJU’S app for further reference. Biology MCQs for Class 12 with Answers Chapter 12 Biotechnology and its Applications. Parasitism is a relationship between two species of animals or plants in which one benefits at the outflow of the other, sometimes without killing the host life form. This preview shows page 22 - 24 out of 26 pages. There are various types of parasitism and are classified based on their size, characteristics, interactions with their hosts and their life cycles. BIO 366: 12: Parasitism and Mutualism. A few insects deposit their eggs within the body of the larva of other insect species. Get access to NCERT Solutions for Class 12 Biology Chapter 13 – Organisms and Population. ... CK-12 is a 501(c)(3) nonprofit. Fox and Rabbit. Any amount makes a huge difference for students worldwide, and we’re grateful for your support. All the infections are caused by viruses and bacteria. Several types of fungi parasitize crops ad spoil fruits, vegetables and food grains. The best app for CBSE students now provides Organisms and Populations class 12 Notes latest chapter wise notes for quick preparation of CBSE board exams and school-based annual examinations. Types of Parasitism Parasitism is an intimate association involving metabolic dependency of the parasite on the host. Therefore, they do not severely harm the host. This is the kind of parasitism in which the parasite is completely dependent on the host to complete its life cycle. Reproduction, a characteristic feature of all organisms for continuation of species; modes of reproduction – asexual and sexual reproduction; asexual reproduction – binary fission, sporulation, budding, gemmule formation, fragmentation; vegetative propagation in plants. (1) Parasitism - intra-specific relationship (2) Uricotelism - aquatic habitat (3) Excessive perspiration - xeric adaptation (4) Streamlined body - aquatic adaptation Sol. 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