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10,033 things · 1,902 votes cast · cast a vote
All | Arts | Biology and health sciences | Everyday life | Geography | History | Mathematics | People | Philosophy and religion | Physical sciences | Society and social sciences | Technology
| # | Thing | Description | Topic | Up/Down/Net | Score ▼ | |
|---|---|---|---|---|---|---|
| 901 |  | Muscle | Important Biological tissue that allows movement | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 902 |  | Muscle cell | Type of cell found in muscle tissue | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 903 |  | Muscle contraction | Activation of tension-generating sites in muscle | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 904 | Muscular system | Internal framework of the body | Biology and health sciences | +0 / -0 / 0 | 0.500000 | |
| 905 |  | Mushroom | Spore-bearing fruiting body of a fungus | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 906 |  | Mushroom poisoning | Harmful effects from ingestion of toxic substances present in a mushroom | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 907 |  | Muskox | Species of arctic land mammal | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 908 |  | Muskrat | Species of rodent | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 909 |  | Mustelidae | Family of mammals | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 910 |  | Mutation | Alteration in the nucleotide sequence of a genome | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 911 |  | Mycology | Study of fungi | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 912 |  | Myriapoda | Subphylum of arthropods | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 913 |  | Myrtaceae | Myrtle family of plants | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 914 |  | Nail (anatomy) | Hard keratin protection of digit | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 915 |  | Naja | Genus of snakes | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 916 |  | Narcissus (plant) | Genus of flowering plants | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 917 |  | Natural selection | Mechanism of evolution by differential reproduction | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 918 |  | Neanderthal | Extinct species of human | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 919 |  | Nelumbo | Genus of aquatic flowering plants known as "lotus." | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 920 |  | Neoplasm | Tumor or other abnormal growth of tissue | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 921 |  | Nervous system | Part of an animal that coordinates actions and senses | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 922 |  | Nervous tissue | Main component of the nervous system | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 923 |  | Neurology | Medical specialty dealing with disorders of the nervous system | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 924 |  | Neuron | Primary cell of the nervous system | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 925 |  | Neuroscience | Scientific study of the nervous system | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 926 |  | Neurotransmitter | Chemical substance that enables neurotransmission | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 927 |  | New World monkey | Parvorder of mammals | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 928 |  | New World vulture | Family of birds | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 929 |  | New World warbler | Family of birds | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 930 |  | Newt | Salamander in the subfamily Pleurodelinae | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 931 |  | Nicotine | Chemical stimulant produced by some plants | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 932 |  | Nightjar | Family of birds | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 933 |  | Northern pike | Species of fish | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 934 |  | Nucleic acid | Class of large biomolecules essential to all known life | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 935 |  | Nurse shark | Elasmobranch fish in the family Ginglymostomatidae | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 936 | Nut (fruit) | Fruit with outer shell protecting kernel | Biology and health sciences | +0 / -0 / 0 | 0.500000 | |
| 937 |  | Nutmeg | Spice from Myristica fragrans | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 938 |  | Nutria | Semi-aquatic rodent from South America | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 939 |  | Nutrition | Provision to cells and organisms to support life | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 940 |  | Nymph (biology) | Immature form of some invertebrates | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 941 |  | Oak | Tree or shrub in the genus Quercus | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 942 |  | Oarfish | Pelagic lampriform fish belonging to Regalecidae | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 943 |  | Oat | Cereal grass and grain | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 944 |  | Obesity | Medical condition of excess body fat | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 945 |  | Obsessive–compulsive disorder | Mental disorder | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 946 | Obstetrics and gynaecology | Medical specialty encompassing two subspecialties | Biology and health sciences | +0 / -0 / 0 | 0.500000 | |
| 947 | Occupational safety and health | Field concerned with the safety, health and welfare of people at work | Biology and health sciences | +0 / -0 / 0 | 0.500000 | |
| 948 |  | Ocean sunfish | Species of fish | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 949 |  | Odor | Volatile chemical compounds perceived by the sense of smell | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
| 950 |  | Okra | Species of edible plant | Biology and health sciences | +0 / -0 / 0 | 0.500000 |
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