Biology Trivia Questions
Total Questions: 123
What do individuals with hirsutism have more than the normal amount of?
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hair
During which winter period do chipmunks enter a sleeplike state called torpor?
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hibernation
What is the term for simple plants that include pond scum and most seaweed?
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algae
What green pigment breaks down in leaves during autumn, causing them to change color?
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chlorophyll
In biology, what part of a fish can 'pinna' refer to, besides the primary division of a leaf or a bird's wing?
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fin
What element, by definition, must be absent in an environment for an anaerobe to live?
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oxygen
During photosynthesis, what gas do plants release after taking in CO2?
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oxygen
What element binds with the iron in hemoglobin in the lungs?
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oxygen
What is the thick layer of fat located beneath the skin that is commonly found in whales and seals?
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blubber
In 1943, a mold discovered in Peoria, Illinois was found to produce significantly more of which drug originally discovered by Alexander Fleming?
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penicillin
What is the jelly-like substance that makes up an entire amoeba and is found in all living things?
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protoplasm
Which creature can have anywhere from 14 to 177 pairs of legs despite what its name suggests?
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centipede
Which organ's oil is a good source of vitamins A & D in cod?
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liver
What part of a bird's egg is contained within the vitelline membrane?
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yolk
Which bird's egg contains the largest cell, with a 3-inch diameter yolk?
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ostrich
What green plant pigment is also present in algae and some bacteria?
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chlorophyll
Which frog species in the U.S. has hind legs that can reach up to 10 inches?
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bullfrog
What substance is responsible for plants being green by absorbing blue-violet and red light?
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chlorophyll
What is the larval stage of a frog or toad also called?
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tadpole
What organ beats over 100 times a minute during tachycardia?
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heart
What part of an adult elephant can be up to 1 1/2 inches thick, weigh about a ton, yet be pierced by an insect?
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skin
What green pigment, found in euglena, often gives ponds their greenish color?
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chlorophyll
How many chambers does the lungfish's heart have, similar to humans?
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4
What hormone has estradiol as its most important form in women?
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estrogen
How many wings does a fly have, according to official classifications?
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2
What part of a horse or cow has the same evolutionary origin as a fingernail?
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hoof
What gas does the body need more of when you yawn?
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oxygen
Which colorless, odorless liquid constitutes over 60% of the human body's weight?
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water
Which mineral in the blood is lowered by the action of a substance called calcitonin?
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calcium
What large mammal's name is derived from two Greek words meaning 'nose-horned'?
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rhinoceros
What is the name of the thinner outer layer of the skin, which lies above the dermis?
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epidermis
In biological terms, what body part is a subcutaneous structure located beneath?
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skin
What part of its body does a frog typically lose last when transitioning from a tadpole?
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tail
What is the organ that makes peristaltic waves and churns, often referred to as 'growling' when it makes noise?
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stomach
What is the science that studies biomes, food chains, and the relationship of living things with the environment?
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ecology
What is the term for a cell formed by the union of two gametes, originating from the Greek word for 'yoke'?
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zygote
How many legs do arachnids have?
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8
What type of organisms include both visible examples like kelp and microscopic ones like spirogyra?
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algae
Which blood pigment is displaced by carbon monoxide, leading to potentially fatal consequences?
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hemoglobin
Which insects in the genus Aedes are known carriers of yellow fever?
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mosquito
What is the juvenile form of a frog, formed after it hatches from an egg?
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tadpole
What chilopoda arthropod can have up to 177 pairs of legs, although most have between 15 and 23 pairs?
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centipede
What vitamin, also known as ascorbic acid, is required in the diet of both humans and the Red-vented Bulbul bird?
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vitamin c
What fiber do spiders produce using their spinning glands, similar to caterpillars?
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silk
By what process does most of a cell's water pass through the plasma membrane?
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osmosis
What organ, composed of thousands of ommatidia, is of the 'compound' type in certain species?
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eye
What term refers to a network of nerves or blood vessels and can follow 'brachial' or 'solar'?
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plexus
In what part of a flower, specifically the male part, are pollen grains produced?
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stamen
Which branch of biology focuses on the study of heredity?
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genetics
What organ can one species of fish in Oman regrow the optic lobes on, being the only vertebrate known to do so?
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brain
Which types of simple plants include varieties such as red, brown, green, and blue-green?
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algae
What single-celled organism has been used since prehistoric times to produce beer and bread?
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yeast
What pigment is produced in your skin in response to sunlight due to the MSH hormone?
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melanin
In meiosis, how many daughter cells are produced from a single cell?
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4
What is the component of blood abbreviated as Hb?
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hemoglobin
What part of the human body has the epidermis as its outer layer?
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skin
What protein pigment is released from blood cells during hemolysis?
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hemoglobin
How many lacrimal glands do you have?
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2
What protein in red blood cells contains about 70% of the iron we absorb?
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hemoglobin
What substance do Indians use from the skin secretions of the South American treefrog, genus Dendrobates?
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poison
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