Biology questions This is a list of recently added questions about biology. Play biology quiz and see all the questions. To which superfamily do ants belong?Wasps. It might be surprising, but ants form part of wasp superfamily. They are closer related to wasps and hornets than bees and bumblebees, that appear to be so much similar.Created by: fitjaco93very hard 35% BeesBees530HornetsHornets464WaspsWasps845BumblebeesBumblebees532insects riddles » Which protein causes blood to clot?Fibrinogen. In order to reduce the loss of blood and facilitate the recovery of the blood vessel at the site of the injury, a blood clot is formed. It is made up of platelets and dissolved plasma protein-fibrogen. By the substance released by the blood-thrombin plate, fibrogen changes into fibrin, which creates a dense network at the site of injury.Created by: pawnikvery hard 34% fibrinogenfibrinogen1199fibrinfibrin1080myosinmyosin439pepsinpepsin732blood riddles » Which human organ is the largest?Skin is the largest in size (about 2 square meter) and the heaviest organ, making up about 16% of body weigh. It is composed of 3 layers: epidermis, dermis and hypodermis.Created by: smyruhard 49% liverliver2167heartheart173skinskin2366pancreaspancreas99medicine riddles » What is a Curaçao liqueur flavored with?Orange peel. Curaçao is made of dried peel of Laraha (Citrus aurantium currassuviencis), a citrus too bitter to be edible. The beverage and the plant come from Dutch Curaçao island by the coasts of Venezuela. Feral Laraha evolved from domesticated Seville orange brought to the island by Spanish settlers. Its peel is also used in medicine to treat stomach.Created by: smyruhard 42% raspberryraspberry407orange peelorange peel4500key lime and herbskey lime and herbs3816almondsalmonds1795drinks riddles » What is inside the camel's hump?Fat. Camels can live without water many days. They don`t sweating, don`t loosing water in excrements. Camels drinkig seldom but they can drink 100 liters in 10 minutes. Created by: Hanna Kaminskaeasy 70% waterwater1895mineralsminerals326fatfat5900sweat glandssweat glands280deserts riddles » How many pairs of chromosomes does a human have?23. A typical human possesses 23 pairs of chromosomes, which add up to 46. Two of the chromosomes are gender related. A female will have two X chromosomes and a male will have one x and y chromosome. As you may have noticed, females do not have y chromosome.Created by: 12 year old geniuseasy 71% 232371774646182052524412626666genetics riddles » What is gluten?A mixture of proteins. Gluten is a mixture of two proteins: gliadin and a glutenin, found in wheat, barley and rye.Created by: globalquiz.orgaverage 62% a type of sugara type of sugar3235a mixture of proteinsa mixture of proteins9111an alkaloidan alkaloid1490a type of fata type of fat805food riddles » Which from endocrine glands is responsible for a regulation of sleep?Pineal gland. The pineal gland is a small endocrine gland in the vertebrate brain. It produces melatonin, a serotonin derived hormone, which affects the modulation of sleep patterns. Melatonin is sold over-the-counter as a sleep aid in the U.S. and Canada.Created by: Paweł Kołodziejczykaverage 60% hypothalamushypothalamus3702adrenal glandsadrenal glands1306thymusthymus1340pineal glandpineal gland9887human anatomy riddles » How is the soilless cultivation of plants called?Hydroponics is a subset of hydroculture and is a method of growing plants using mineral nutrient solutions, in water, without soil. Terrestrial plants may be grown with their roots in the mineral nutrient solution only or in an inert medium, such as perlite or gravel.Created by: Paweł Kołodziejczykhard 50% hydrologyhydrology1489hydroculturehydroculture3061hydroponicshydroponics8211hydrofarminghydrofarming3519crops riddles » How is the branch of zoology concerned with aphibians and reptiles called?Herpetology. "Herp" is a vernacular term for reptiles and amphibians. It is derived from Greek 'herpien' meaning 'to creep'.Created by: Paweł Kołodziejczykhard 55% ichthyologyichthyology3935herpetologyherpetology11285malacologymalacology1957entomologyentomology3321reptiles riddles » Play biology quiz and see all the questions.