NEET BIOLOGY

BIOLOGICAL CLASSIFICATION

VIRUSES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is no longer alive?
A
Hepatitis B virus
B
Dinosaur bones
C
Staph bacteria
D
Concrete
Explanation: 

Detailed explanation-1: -Check out the last dinosaur that survived on planet Earth. The Chenanisaurus barbaricus species is said to be one of the last ones to have survived on Earth before an asteroid strike wiped them all out about 66 million years ago.

Detailed explanation-2: -Birds: Birds are the only dinosaurs to survive the mass extinction event 65 million years ago.

Detailed explanation-3: -There are currently about 3, 000 so-called “full” dinosaur specimens-complete or near-complete skeletons or just a complete or near-complete skull-in museums around the United States. Scientists estimate that there are at least triple this number as yet uncollected around the globe.

Detailed explanation-4: -Fossils are not alive, they are the impressions and remains of once-living animals and plants. However, there are some species of animals that are referred to as ‘’living fossils” because they have survived millions of years of evolutionary and geological processes the Earth has gone through, with few changes.

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