questionedithistorytranslationsHow many cells does the body of a protozoan consist of?none158415443usually 2 or 3825the number depends on various factor1059Protozoa are single-celled animals or organisms with animal-like behaviors, such as motility and predation. Share and bring new players to the game!correct this questionNinjaireach: rather globalanimalsbiologymicroorganismswikipedia → ProtozoaBiology quizAnimals quizHow do baby birds get oxygen inside their eggs?Oxygen comes in through pores in the shell. Directly under the shell, there is a small pocket of air. The microscopic pores on the egg surface allow the CO2 to escape and fresh air to get in, so a developing bird can breathe.What color is octopus blood?Blue. Both squids and octopuses have blue blood. They use an oxygen-carrying molecule in their blood called hemocyanin that contains copper. In cold conditions with low oxygen pressure, hemocyanin oxygen transportation is more efficient than hemoglobin oxygen transportation.Which animals are the most threatened by a prion disease?Sheep. Scrapie is infectious and incurable. Recent studies suggest prions may be spread through urine and persist in the environment for decades. Scrapie occurs in Europe and North America, but to date, Australia and New Zealand (both major sheep-producing countries) are scrapie-free.Which European King went down with his ship?Olav Tryggvason. Olaf Tryggvason was King of Norway from 995 to 1000. He died in the Battle of Svolder. Olaf fought to the last on his great vessel Ormrinn Langi ("Long Serpent"), the mightiest ship in the North, and finally leapt overboard and was seen no more. In later centuries, the saga descriptions of the battle have inspired a number of ballads and other works of literature.