Sci-Five | The Hindu’s Science Quiz: On Brains
A wild spider is seen on its nest concerned within the winter morning dews on wayside simply outskirts of Bhubaneswar. File
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This eight-legged animal’s mind takes up about 80% of its physique cavity. Name the animal.
- Spiders
- Crab
- Scorpions
- Mites
The Smithsonian Tropical Research Institute discovered that the central nervous techniques of among the world’s smallest spiders replenish nearly 80% of their complete physique cavity.
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How do woodpeckers defend themselves from mind injury?
- Their skulls are very thick
- Their skulls comprise a fluid that protects the mind
- Their skulls have air pockets that cushion the mind from the jolts from pecking timber.
- Their skulls don’t have any safety. They finally get mind injury.
Like all birds, woodpeckers have very advanced skulls stuffed with tiny, very light-weight bones; the cranium of a mean chook weighs simply 1% of the chook’s physique weight. The woodpecker has a built-in protecting mechanism that cushions the mind from the jolts of its actions: air pockets.
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Which animal’s mind is the most important within the animal kingdom?
- Elephants
- Sperm whale
- Rhinoceros
- Killer whales
The sperm whale has the most important mind of any animal species, weighing as much as 7 to 9 kilograms.
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This is among the few animals on this planet that doesn’t have a mind. Name the animal.
- Sea urchins
- Leech
- Starfish
- Sponges
There is one organism that has no mind or nervous tissue of any form: the sponge. Sponges are easy animals, surviving on the ocean flooring by taking vitamins into their porous our bodies.
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How does the nervous system of an octopus differ from that of people?
- Octopuses have a centralized nervous system.
- Octopuses don’t have any nervous system.
- Each arm of an octopus can act semi-independently.
- An octopus’s brain-to-body ratio is the smallest of any invertebrate
An octopus’s nervous system permits every arm to behave semi-independently of the remainder of its physique. Unlike people, octopuses don’t have a centralized nervous system, though they do have a important mind between their eyes.
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