1) How many color receptors (cones) do most people have in their eyes? a) Four (most people have tetrachromatic vision: they can see four primary colors. b) Three (most people have trichromatic vision: red, green, and blue cones). 2) How many color receptors (cones) do most people have in their eyes? a) Three (most people have trichromatic vision: red, green, and blue cones). b) Four (most people have tetrachromatic vision: they can see four primary colors. 3) Birds are tetrachromatic. What does this mean? a) Birds can see four primary colors (they have four types of cones). b) Birds can see three colors (red, green, and blue). 4) What was the Black Death? a) A very effective vaccine that doctors used to treat bacterial infections. b) A deadly pandemic caused by a dangerous bacteria in the 14th century. 5) What helped to reduce cases of cholera in towns and cities in the 19th century? a) Being isolated from other people to avoid spreading a disease. b) Improved sanitation and clean water supplies (e.g., sewage systems). 6) For which desease was the antibiotic streptomycin found to be an effective treatment? a) Tuberculosis (TB). b) Covid-19 7) Which three letters are the abbreviation for deoxyribonucleic acid? a) G8A b) RNA c) DNA d) G8B e) PTC f) CCA 8) Why do detectives use fingerprints to help them solve crimes? a) Detectives are secretly part of a secret society of fingerprint collectors. b) Fingerprints are unique to each person, helping identify suspects. 9) In which country is the Nairobi National Park? a) Africa b) China c) Japan d) Kenya 10) What was the dodo and what happened to it? a) A flightless bird. It was hunted to extinction by humans and invasive species in the 17th century. b) The dodo was a silly bird that forgot how to fly because it was too lazy. c) Dodos went extinct because they kept trying to high-five lions. d) The dodo was like a chicken who failed gym class. It couldn't run, couldn't fly - it just said "I will sit here and look cute". 11) How have conservation programes helped species such as giant pandas and rhinos? a) Programs protect habitats, ban hunting, and breed animals in captivity to increase populations. b) They taught pandas to reproduce by mitosis, they just split in half like a cell.

Unit 4 General Knowledge Quiz

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